<?xml version="1.0"?><rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/"><channel><title>NOVA | PBS Video</title><description>NOVA RSS feed for PBS programming.</description><link>http://video.pbs.org/</link><language>en-us</language><generator>http://video.pbs.org/</generator><lastBuildDate>Mon, 23 Nov 2009 23:51:31 -0500</lastBuildDate><pubDate>Mon, 23 Nov 2009 23:51:31 -0500</pubDate><item><title>NOVA | Becoming Human Full Series Preview</title><link>http://video.pbs.org/video/1316763318/</link><description>Where did we come from? What makes us human? An explosion of recent discoveries sheds light on these questions, and NOVA&#39;s comprehensive, three-part special, &quot;Becoming Human,&quot; examines what the latest scientific research reveals about our hominid relatives.</description><guid>http://video.pbs.org/video/1316763318/</guid><pubDate>Mon, 2 Nov 2009 08:43:14 -0800</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>Watch Tuesdays through Nov. 17, 2009, 8PM.  Check your local listings.</media:description><media:content medium="video" duration="571533" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/17/721/humanskulls.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">nr</media:rating><media:player url="http://video.pbs.org/video/1316763318/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Becoming Human Part 3</title><link>http://video.pbs.org/video/1327194805/</link><description>The third hour of NOVA&#39;s comprehensive, three-part special &quot;Becoming Human&quot; examines why, of the many species of humans that once shared the globe, only our species, Homo sapiens, remains.</description><guid>http://video.pbs.org/video/1327194805/</guid><pubDate>Tue, 17 Nov 2009 16:05:39 -0800</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Prehistoric (Pre 8000 BC)</category><category domain="PBS/taxonomy/topic">History/World</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Science</category><media:description>Last Human Standing: Many human species once shared the globe. Why do we alone remain?</media:description><media:content medium="video" duration="3092247" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/242/729/nova-003615-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>evolution, history, nature</media:keywords><media:player url="http://video.pbs.org/video/1327194805/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Prehistoric (Pre 8000 BC)</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/World</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category></item><item><title>NOVA | Becoming Human Part 2</title><link>http://video.pbs.org/video/1319997127/</link><description>The second hour of NOVA&#39;s comprehensive, three-part special &quot;Becoming Human&quot; examines new discoveries that reveal how the first humans hunted and formed families.</description><guid>http://video.pbs.org/video/1319997127/</guid><pubDate>Tue, 10 Nov 2009 16:08:30 -0800</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/Identity</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Prehistoric (Pre 8000 BC)</category><category domain="PBS/taxonomy/topic">History/World</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Science</category><media:description>Birth of Humanity: New discoveries reveal how early humans hunted and formed families.</media:description><media:content medium="video" duration="3087673" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/235/868/nova-003614-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>evolution, history, nature</media:keywords><media:player url="http://video.pbs.org/video/1319997127/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/Identity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Prehistoric (Pre 8000 BC)</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/World</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category></item><item><title>NOVA | Becoming Human Part 1</title><link>http://video.pbs.org/video/1312522241/</link><description>The first hour of NOVA&#39;s comprehensive, three-part special &quot;Becoming Human&quot; examines the factors that caused us to split from the other great apes.</description><guid>http://video.pbs.org/video/1312522241/</guid><pubDate>Tue, 3 Nov 2009 16:00:30 -0800</pubDate><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Forensic</category><media:description>First Steps: 6 million years ago, what set our ancestors on the path from ape to human?</media:description><media:content medium="video" duration="3087209" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/228/737/nova-003613-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>evolution, history, nature</media:keywords><media:player url="http://video.pbs.org/video/1312522241/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Forensic</media:category></item><item><title>NOVA | Lizard Kings</title><link>http://video.pbs.org/video/1300615533/</link><description>Meet the monitors, the largest, fiercest, and craftiest lizards on Earth.</description><guid>http://video.pbs.org/video/1300615533/</guid><pubDate>Wed, 21 Oct 2009 02:23:08 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><media:description>Meet the monitors, the largest, fiercest, and craftiest lizards on Earth.</media:description><media:content medium="video" duration="3142704" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/217/373/nova-003616-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:player url="http://video.pbs.org/video/1300615533/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category></item><item><title>NOVA | Hubble&#39;s Amazing Rescue</title><link>http://video.pbs.org/video/1294298696/</link><description>The unlikely story about how the world&#39;s most beloved telescope was saved</description><guid>http://video.pbs.org/video/1294298696/</guid><pubDate>Wed, 14 Oct 2009 03:20:08 -0700</pubDate><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/United States</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>The unlikely story about how the world&#39;s most beloved telescope was saved</media:description><media:content medium="video" duration="3127426" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/211/348/nova-003611-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>space, NASA, astronaut, telescope, John Grunsfeld, Mike Massimino, Hubble repair, Hubble, space walk, Space Shuttle Atlantis</media:keywords><media:player url="http://video.pbs.org/video/1294298696/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | Darwin&#39;s Darkest Hour</title><link>http://video.pbs.org/video/1286437550/</link><description>NOVA and National Geographic Television present a two-hour drama on the crisis that compelled Darwin to publish his theory of evolution.</description><guid>http://video.pbs.org/video/1286437550/</guid><pubDate>Wed, 7 Oct 2009 06:21:46 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/People &amp; Profiles</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Performing Arts</category><category domain="PBS/taxonomy/topic">Performing Arts/Drama</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>A two-hour drama on the crisis that compelled Darwin to publish his theory of evolution</media:description><media:content medium="video" duration="6112266" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/13/497/nova-003605-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>evolution, Drama, Charles Darwin, Emma Darwin, Alfred Russel Wallace, Henry Ian Cusick</media:keywords><media:player url="http://video.pbs.org/video/1286437550/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/People &amp; Profiles</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Performing Arts</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Performing Arts/Drama</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Doctors&#39; Diaries</title><link>http://video.pbs.org/video/1114402491/</link><description>Seven doctors, 21 years... Saving lives is only part of the story.</description><guid>http://video.pbs.org/video/1114402491/</guid><pubDate>Tue, 12 May 2009 11:09:52 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/People &amp; Profiles</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Health Care</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Health Science</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Profiles</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Public Health</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/United States</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Medical</category><media:description>Seven doctors, 21 years... Saving lives is only part of the story.</media:description><media:content medium="video" duration="6131000" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/39/796/nova-003608-09-thumb__758425.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>medical school, Harvard Medical School, medical students, residency, hospitals, emergency medicine</media:keywords><media:player url="http://video.pbs.org/video/1114402491/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/People &amp; Profiles</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Health Care</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Health Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Profiles</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Public Health</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Medical</media:category></item><item><title>NOVA | Last Extinction</title><link>http://video.pbs.org/video/1108903659/</link><description>Scientists propose a radical idea of what killed off mammoths and other Ice Age animals.</description><guid>http://video.pbs.org/video/1108903659/</guid><pubDate>Fri, 1 May 2009 11:05:27 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/North America</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Science/Earth Sciences</category><media:description>Scientists propose a radical idea of what killed off mammoths and other Ice Age animals.</media:description><media:content medium="video" duration="3130885" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/34/546/nova-003607-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>extinction, NOVA Last Extinction, Clovis, mammoth, Ice Age, comet, stone age tool, megafauna, black mat</media:keywords><media:player url="http://video.pbs.org/video/1108903659/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/North America</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Earth Sciences</media:category></item><item><title>NOVA | Extreme Ice</title><link>http://video.pbs.org/video/1108763899/</link><description>An acclaimed photographer joins scientists to document the runaway melting of glaciers.</description><guid>http://video.pbs.org/video/1108763899/</guid><pubDate>Fri, 1 May 2009 11:51:04 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Environment</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Earth Sciences</category><media:description>An acclaimed photographer joins scientists to document the runaway melting of glaciers.</media:description><media:content medium="video" duration="3171533" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/15/129/nova-003604-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>Alaska, global warming, NOVA Extreme Ice, James Balog, glacier melting, ice sheet, sea-level rise, Greenland, Iceland, Columbia Glacier</media:keywords><media:player url="http://video.pbs.org/video/1108763899/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Earth Sciences</media:category></item><item><title>NOVA | Rat Attack</title><link>http://video.pbs.org/video/1051969546/</link><description>Why do huge swarms of rats overrun a bamboo forest in India once every half-century?</description><guid>http://video.pbs.org/video/1051969546/</guid><pubDate>Fri, 6 Mar 2009 06:54:40 -0800</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Insects</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Plant Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><category domain="PBS/taxonomy/topic">Science/Earth Sciences</category><media:description>Why do huge swarms of rats overrun a bamboo forest in India once every half-century?</media:description><media:content medium="video" duration="3166481" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/243/3603_rats.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>India, plague, rats</media:keywords><media:player url="http://video.pbs.org/video/1051969546/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Insects</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Plant Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Earth Sciences</media:category></item><item><title>NOVA | The Spy Factory</title><link>http://video.pbs.org/video/1051968443/</link><description>Examine the high-tech eavesdropping carried out by the National Security Agency and the pitfalls of surveillance in an age of terrorism.</description><guid>http://video.pbs.org/video/1051968443/</guid><pubDate>Sat, 14 Mar 2009 16:31:20 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/United States</category><category domain="PBS/taxonomy/topic">History/War &amp; Espionage</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Government</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Law &amp; Criminal Justice</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/National Security</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Politics</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Electronics</category><media:description>Examine the high-tech eavesdropping carried out by the National Security Agency.</media:description><media:content medium="video" duration="3163254" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/241/3602_spyfactory.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>security, spy, surveillance, terrorism</media:keywords><media:player url="http://video.pbs.org/video/1051968443/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/War &amp; Espionage</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Government</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Law &amp; Criminal Justice</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/National Security</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Politics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Electronics</media:category></item><item><title>NOVA | The Incredible Journey of the Butterflies</title><link>http://video.pbs.org/video/1063682334/</link><description>Follow the 2,000-mile migration of monarchs to a sanctuary in the highlands of Mexico.</description><guid>http://video.pbs.org/video/1063682334/</guid><pubDate>Fri, 17 Apr 2009 11:44:38 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Insects</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Plant Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><media:description>Follow the 2,000-mile migration of monarchs to a sanctuary in the highlands of Mexico.</media:description><media:content medium="video" duration="3137805" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1015/417/NOVA-003601-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:player url="http://video.pbs.org/video/1063682334/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Insects</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Plant Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</media:category></item><item><title>NOVA | The Big Energy Gamble</title><link>http://video.pbs.org/video/1051958162/</link><description>Can California&#39;s ambitious plan to cut greenhouse gases actually succeed?</description><guid>http://video.pbs.org/video/1051958162/</guid><pubDate>Sat, 14 Mar 2009 16:22:12 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Energy</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Environment</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Politics</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/United States</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><media:description>Can California&#39;s ambitious plan to cut greenhouse gases actually succeed?</media:description><media:content medium="video" duration="3147302" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/231/3519_energy.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>Energy, california, greenhouse gases, global warming, carbon footprint</media:keywords><media:player url="http://video.pbs.org/video/1051958162/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Energy</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Politics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category></item><item><title>NOVA | Is There Life on Mars?</title><link>http://video.pbs.org/video/1114436021/</link><description>The search for life on the Red Planet heats up with the discovery of frozen water.</description><guid>http://video.pbs.org/video/1114436021/</guid><pubDate>Wed, 6 May 2009 09:31:43 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Science/Biology</category><category domain="PBS/taxonomy/topic">Science/Chemistry</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Robotics</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>The search for life on the Red Planet heats up with the discovery of frozen water.</media:description><media:content medium="video" duration="3117650" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/39/829/nova-003518-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>NOVA, Is There Life on Mars?, Mars rover, Spirit and Opportunity, Red Planet, extraterrestrial life, Phoenix Mars Lander, water on mars</media:keywords><media:player url="http://video.pbs.org/video/1114436021/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Chemistry</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Robotics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | Ocean Animal Emergency</title><link>http://video.pbs.org/video/1051884361/</link><description>Wildlife veterinarians struggle to save injured seals and sea lions on the California coast.</description><guid>http://video.pbs.org/video/1051884361/</guid><pubDate>Tue, 9 Jun 2009 12:54:06 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><media:description>Wildlife veterinarians struggle to save injured seals and sea lions.</media:description><media:content medium="video" duration="3161814" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/159/3517_ocean.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>seals, sea lions, ocean, california, veterinary</media:keywords><media:player url="http://video.pbs.org/video/1051884361/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category></item><item><title>NOVA | The Bible&#39;s Buried Secrets</title><link>http://video.pbs.org/video/1051895565/</link><description>An archeological detective story traces the origins of the Hebrew Bible.</description><guid>http://video.pbs.org/video/1051895565/</guid><pubDate>Sat, 14 Mar 2009 14:27:34 -0700</pubDate><category domain="PBS/taxonomy/topic">Arts &amp; Literature</category><category domain="PBS/taxonomy/topic">Arts &amp; Literature/Writing</category><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/Communities</category><category domain="PBS/taxonomy/topic">Culture/Spirituality &amp; Religion</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Ancient &amp; Classical (8000 BC - 400 AD)</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Middle East</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><media:description>An archeological detective story traces the origins of the Hebrew Bible.</media:description><media:content medium="video" duration="6689000" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/170/3516_bible.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>Bible, Hebrew</media:keywords><media:player url="http://video.pbs.org/video/1051895565/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature/Writing</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/Communities</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/Spirituality &amp; Religion</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Ancient &amp; Classical (8000 BC - 400 AD)</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Middle East</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category></item><item><title>NOVA | Alien From Earth</title><link>http://video.pbs.org/video/1051895972/</link><description>Do the remains of a tiny hobbit-like creature on the island of Flores belong to a new human species?</description><guid>http://video.pbs.org/video/1051895972/</guid><pubDate>Sat, 14 Mar 2009 14:16:21 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>Do the remains of a tiny hobbit-like creature belong to a new human species?</media:description><media:content medium="video" duration="3127400" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1004/171/nova-003515-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>fossils, bones, indonesia</media:keywords><media:player url="http://video.pbs.org/video/1051895972/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Hunting the Hidden Dimension</title><link>http://video.pbs.org/video/1050932219/</link><description>Mysteriously beautiful fractals are shaking up the world of mathematics and deepening our understanding of nature.</description><guid>http://video.pbs.org/video/1050932219/</guid><pubDate>Fri, 6 Mar 2009 06:54:35 -0800</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Mathematics</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Computing</category><media:description>Mysteriously beautiful fractals are deepening our understanding of nature.</media:description><media:content medium="video" duration="3179000" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1003/253/nova-003514-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>fractals, chaos, Mandelbrot set</media:keywords><media:player url="http://video.pbs.org/video/1050932219/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Mathematics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Computing</media:category></item><item><title>NOVA | Space Shuttle Disaster</title><link>http://video.pbs.org/video/1024203198/</link><description>An investigation uncovers the human failures and design flaws behind the 2003 Columbia tragedy.</description><guid>http://video.pbs.org/video/1024203198/</guid><pubDate>Tue, 21 Apr 2009 16:56:12 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/20th &amp; 21st Centuries</category><category domain="PBS/taxonomy/topic">History/United States</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Science &amp; Technology</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Science/Profiles</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>An investigation uncovers the failures and design flaws behind the 2003 Columbia tragedy.</media:description><media:content medium="video" duration="3138000" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/977/775/nova-003512-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>space, astronauts, NASA, rockets, space shuttle</media:keywords><media:player url="http://video.pbs.org/video/1024203198/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/20th &amp; 21st Centuries</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Science &amp; Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Profiles</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | Arctic Dinosaurs</title><link>http://video.pbs.org/video/1022686073/</link><description>Experts in Alaska investigate how dinosaurs managed to thrive in polar regions.</description><guid>http://video.pbs.org/video/1022686073/</guid><pubDate>Sat, 14 Mar 2009 15:57:00 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Earth</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><media:description>Experts in Alaska investigate how dinosaurs managed to thrive in polar regions.</media:description><media:content medium="video" duration="3143796" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/976/317/nova-003511-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>Alaska, Arctic, asteroid impact, Colville River, Cretaceous, dinosaurs, extinction, fossils, warm-blooded, North Slope, paleontology, permafrost</media:keywords><media:player url="http://video.pbs.org/video/1022686073/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Earth</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category></item><item><title>NOVA | Lord of the Ants</title><link>http://video.pbs.org/video/980049632/</link><description>E.O. Wilson&#39;s fascination with little creatures has led him to some very big ideas.</description><guid>http://video.pbs.org/video/980049632/</guid><pubDate>Fri, 6 Mar 2009 11:05:08 -0800</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Insects</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><category domain="PBS/taxonomy/topic">Science/Profiles</category><media:description>E.O. Wilson&#39;s fascination with little creatures has led him to some very big ideas.</media:description><media:content medium="video" duration="3177941" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/664/NOVA-003510-THUMB.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>biology, ants, biodiversity, biophilia, diverse, diversity, E.O. Wilson, life, natural world</media:keywords><media:player url="http://video.pbs.org/video/980049632/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Insects</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Profiles</media:category></item><item><title>NOVA | A Walk to Beautiful</title><link>http://video.pbs.org/video/980049841/</link><description>A powerful story of healing &amp; hope for women in Ethiopia devastated by childbirth injuries.  A Walk to Beautiful won the 2009 Emmy Award for Outstanding Informational Program - Long Format.</description><guid>http://video.pbs.org/video/980049841/</guid><pubDate>Sat, 14 Mar 2009 15:33:34 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/Communities</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Health Care</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Public Health</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Health</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Africa</category><media:description>2009 Emmy Winner: A powerful story of healing &amp; hope for women in Ethiopia devastated by childbirth injuries</media:description><media:content medium="video" duration="3213632" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/664/NOVA-003506-THUMB.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>Almaz, Ayehu, beautiful, Catherine Hamlin, childbirth, delivery, Ethiopia, fistula, health</media:keywords><media:player url="http://video.pbs.org/video/980049841/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/Communities</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Health Care</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Public Health</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Health</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Africa</media:category></item><item><title>NOVA | Car of the Future</title><link>http://video.pbs.org/video/980048834/</link><description>The &quot;Car Talk&quot; guys look for a new breed of clean, fuel-efficient vehicles.</description><guid>http://video.pbs.org/video/980048834/</guid><pubDate>Fri, 20 Mar 2009 15:58:38 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Science &amp; Technology</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Automotive</category><category domain="PBS/taxonomy/topic">Technology/Computing</category><category domain="PBS/taxonomy/topic">Technology/Electronics</category><category domain="PBS/taxonomy/topic">Technology/Energy</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><category domain="PBS/taxonomy/topic">Technology/Transportation</category><media:description>The &quot;Car Talk&quot; guys look for a new breed of clean, fuel-efficient vehicles.</media:description><media:content medium="video" duration="3192133" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/663/NOVA-003509-THUMB.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>science, Auto, automobile, transportation, car, future, Alternative, Energy, fuel, Car Talk, efficient, efficiency</media:keywords><media:player url="http://video.pbs.org/video/980048834/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Science &amp; Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Automotive</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Computing</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Electronics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Energy</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Transportation</media:category></item><item><title>NOVA | Cracking the Maya Code</title><link>http://video.pbs.org/video/980048895/</link><description>The story behind the centuries-long decipherment of ancient Maya hieroglyphs.</description><guid>http://video.pbs.org/video/980048895/</guid><pubDate>Sat, 14 Mar 2009 15:42:32 -0700</pubDate><category domain="PBS/taxonomy/topic">Arts &amp; Literature</category><category domain="PBS/taxonomy/topic">Arts &amp; Literature/Writing</category><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/The Americas</category><category domain="PBS/taxonomy/topic">History/World</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><media:description>The story behind the centuries-long decipherment of ancient Maya hieroglyphs.</media:description><media:content medium="video" duration="3160960" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/663/NOVA-003508-THUMB.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>ancient, Central America, civilization, decipher, decode, glyph, inscription, language, Maya, Mexico</media:keywords><media:player url="http://video.pbs.org/video/980048895/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature/Writing</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/The Americas</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/World</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category></item><item><title>NOVA | The Four-Winged Dinosaur</title><link>http://video.pbs.org/video/1050822242/</link><description>Surprising fossils from northeastern China spur a debate over how birds evolved.</description><guid>http://video.pbs.org/video/1050822242/</guid><pubDate>Sat, 14 Mar 2009 15:07:39 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Archaeology &amp; Anthropology</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>Surprising fosils from northeastern China spur a debate over how birds evolved.</media:description><media:content medium="video" duration="3260800" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1003/146/3505-episode.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>paleontology, evolution, fossil, dinosaur, flight</media:keywords><media:player url="http://video.pbs.org/video/1050822242/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Archaeology &amp; Anthropology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Ape Genius</title><link>http://video.pbs.org/video/1200128615/</link><description>Experts zero in on what separates humans from our closest living relatives.  Ape Genius received a 2009 Emmy nomination for Outstanding Science, Technology, and Nature Programming.</description><guid>http://video.pbs.org/video/1200128615/</guid><pubDate>Thu, 6 Aug 2009 06:04:08 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><category domain="PBS/taxonomy/topic">Science/Psychology</category><media:description>2009 Emmy Nominee: Experts zero in on what separates humans from our closest living relatives.</media:description><media:content medium="video" duration="3166899" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/121/545/nova-003507-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>language, intelligence, anthropology, ape, behavior, bonobo, communication, great ape, human, primate</media:keywords><media:player url="http://video.pbs.org/video/1200128615/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Psychology</media:category></item><item><title>NOVA | Astrospies</title><link>http://video.pbs.org/video/980042464/</link><description>An elite corps of U.S. astronauts is trained to gather intelligence on the Soviets.</description><guid>http://video.pbs.org/video/980042464/</guid><pubDate>Fri, 17 Apr 2009 11:52:10 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/War &amp; Espionage</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>An elite corps of U.S. astronauts is trained to gather intelligence on the Soviets.</media:description><media:content medium="video" duration="3176384" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/657/3503.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>Almaz, Asif Siddiqi, astronaut, China, Cold War, cosmonaut, India, James Bamford, Japan</media:keywords><media:player url="http://video.pbs.org/video/980042464/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/War &amp; Espionage</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | Secrets of the Parthenon</title><link>http://video.pbs.org/video/980040228/</link><description>How did the ancient Athenians build this near-flawless icon of Greece&#39;s golden age?  Secrets of the Parthenon received a 2009 Emmy nomination for Outstanding Science, Technology and Nature Programming.</description><guid>http://video.pbs.org/video/980040228/</guid><pubDate>Fri, 6 Mar 2009 06:36:09 -0800</pubDate><category domain="PBS/taxonomy/topic">Arts &amp; Literature</category><category domain="PBS/taxonomy/topic">Arts &amp; Literature/Architecture</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Ancient &amp; Classical (8000 BC - 400 AD)</category><media:description>2009 Emmy Nominee: How did the ancient Athenians build this near-flawless icon of Greece&#39;s golden age?</media:description><media:content medium="video" duration="3176298" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/655/3502.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>ancient, Acropolis, architecture, Athenian, design, engineering, Greece, Greek</media:keywords><media:player url="http://video.pbs.org/video/980040228/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Arts &amp; Literature/Architecture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Ancient &amp; Classical (8000 BC - 400 AD)</media:category></item><item><title>NOVA | Absolute Zero</title><link>http://video.pbs.org/video/1050757560/</link><description>The story of the harnessing of cold and the race to reach the lowest temperature possible.</description><guid>http://video.pbs.org/video/1050757560/</guid><pubDate>Fri, 6 Mar 2009 06:40:44 -0800</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Chemistry</category><category domain="PBS/taxonomy/topic">Science/Physics</category><category domain="PBS/taxonomy/topic">Technology</category><media:description>The story of the harnessing of cold and the race to reach the lowest temperature possible.</media:description><media:content medium="video" duration="6078466" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1003/83/3501-episode.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>temperature, superconductivity, refrigeration, thermometer, freeze</media:keywords><media:player url="http://video.pbs.org/video/1050757560/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Chemistry</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Physics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category></item><item><title>NOVA | Missing in MiG Alley</title><link>http://video.pbs.org/video/980042063/</link><description>What happened to American pilots shot down over Korea half a century ago?</description><guid>http://video.pbs.org/video/980042063/</guid><pubDate>Fri, 17 Apr 2009 11:51:22 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/War &amp; Espionage</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Military</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Region/North America</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Aviation</category><category domain="PBS/taxonomy/topic">Technology/Electronics</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><media:description>What happened to American pilots shot down over Korea half a century ago?</media:description><media:content medium="video" duration="3105066" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/657/3418.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>China, ace, aerodynamic, airman, airmen, alley, American, cockpit, Defense, DNA</media:keywords><media:player url="http://video.pbs.org/video/980042063/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/War &amp; Espionage</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Military</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/North America</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Aviation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Electronics</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category></item><item><title>NOVA | Judgment Day: Intelligent Design on Trial</title><link>http://video.pbs.org/video/980040807/</link><description>Science is &quot;exhibit A&quot; in a landmark trial on the teaching of evolution.</description><guid>http://video.pbs.org/video/980040807/</guid><pubDate>Wed, 27 May 2009 12:46:21 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/United States</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Education</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>Science is &quot;exhibit A&quot; in a landmark trial on the teaching of evolution.</media:description><media:content medium="video" duration="6741867" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/656/3416.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>biology, Darwin, Dover, evolution, fossil, intelligent design, school board</media:keywords><media:player url="http://video.pbs.org/video/980040807/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Education</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Video Short: Evolution in Action</title><link>http://video.pbs.org/video/1300397304/</link><description>See how salamanders in California are evolving, just as Darwin might have predicted.</description><guid>http://video.pbs.org/video/1300397304/</guid><pubDate>Mon, 19 Oct 2009 13:53:50 -0700</pubDate><media:description>See how salamanders in California are evolving, just as Darwin might have predicted.</media:description><media:content medium="video" duration="201800" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/217/160/nova-00evoinaction-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">nr</media:rating><media:player url="http://video.pbs.org/video/1300397304/" /></item><item><title>NOVA | Video Short: Why NOVA Covered the Case</title><link>http://video.pbs.org/video/1300404886/</link><description>Senior Executive Producer Paula Apsell describes the decision to make &quot;Judgment Day.&quot;</description><guid>http://video.pbs.org/video/1300404886/</guid><pubDate>Mon, 19 Oct 2009 12:58:32 -0700</pubDate><media:description>Senior Executive Producer Paula Apsell describes the decision to make &quot;Judgment Day.&quot;</media:description><media:content medium="video" duration="157866" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/217/167/nova-00PSAQA-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">nr</media:rating><media:player url="http://video.pbs.org/video/1300404886/" /></item><item><title>NOVA | Sputnik Declassified</title><link>http://video.pbs.org/video/980040656/</link><description>Top secret documents rewrite the history of the most famous satellite and the early space race.</description><guid>http://video.pbs.org/video/980040656/</guid><pubDate>Sat, 14 Mar 2009 14:42:00 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/20th &amp; 21st Centuries</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>Top-secret documents rewrite the history of the famous satellite and the space race.</media:description><media:content medium="video" duration="3157162" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/655/3415.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>A-4, classified, Military, space race, satellite</media:keywords><media:player url="http://video.pbs.org/video/980040656/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/20th &amp; 21st Centuries</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | Marathon Challenge</title><link>http://video.pbs.org/video/1050815967/</link><description>Explore what it takes for novice runners to make it through a classic test of endurance.</description><guid>http://video.pbs.org/video/1050815967/</guid><pubDate>Wed, 10 Jun 2009 16:38:06 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/Sports &amp; Recreation</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Biology</category><category domain="PBS/taxonomy/topic">Health &amp; Wellness/Sports &amp; Fitness</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Biology</category><media:description>Explore what it takes for novice runners to make it through a classic test of endurance.</media:description><media:content medium="video" duration="3156149" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/1003/140/3414-episode.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>exercise, marathon, running, physiology, Boston</media:keywords><media:player url="http://video.pbs.org/video/1050815967/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/Sports &amp; Recreation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Biology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Health &amp; Wellness/Sports &amp; Fitness</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Biology</media:category></item><item><title>NOVA | Secrets of the Samurai Sword</title><link>http://video.pbs.org/video/1150578495/</link><description>The ancient art and science behind a Japanese warrior&#39;s prized weapon</description><guid>http://video.pbs.org/video/1150578495/</guid><pubDate>Wed, 8 Jul 2009 10:27:13 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Region</category><category domain="PBS/taxonomy/topic">Region/Asia-Pacific</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><media:description>The ancient art and science behind a Japanese warrior&#39;s prized weapon</media:description><media:content medium="video" duration="3186822" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/74/284/nova-003412-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>engineering, Japan, chemistry, blade, code, forging, katana, samurai, sword, warrior, weapon</media:keywords><media:player url="http://video.pbs.org/video/1150578495/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Region/Asia-Pacific</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category></item><item><title>NOVA | Bone Diggers</title><link>http://video.pbs.org/video/1150570417/</link><description>Deep in an Australian cave, paleontologists discover fossils of extinct giant animals.</description><guid>http://video.pbs.org/video/1150570417/</guid><pubDate>Tue, 16 Jun 2009 13:10:07 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Conservation</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Habitat</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><media:description>Deep in an Australian cave, paleontologists discover fossils of extinct giant animals.</media:description><media:content medium="video" duration="3145816" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/74/276/nova-003408-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>extinction, paleontology, bones, Ice Age, Australia, Australian, cave, kangaroo, lion, marsupial, Outback, predator, Thylacoleo</media:keywords><media:player url="http://video.pbs.org/video/1150570417/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Conservation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Habitat</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</media:category></item><item><title>NOVA | Saved by the Sun</title><link>http://video.pbs.org/video/980039287/</link><description>As the Earth heats up at a dangerous rate and fossil fuels become scarcer, ordinary citizens and businesses are bypassing the federal government to lead the way in exploring a clean, renewable source of power: the sun.</description><guid>http://video.pbs.org/video/980039287/</guid><pubDate>Fri, 6 Mar 2009 11:16:34 -0800</pubDate><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Science/Earth Sciences</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Energy</category><media:description>Is it time to take solar energy seriously?</media:description><media:content medium="video" duration="3188522" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/935/654/3406.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>Energy, biofuel, bioreactor, carbon dioxide, cell, Conservation</media:keywords><media:player url="http://video.pbs.org/video/980039287/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Earth Sciences</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Energy</media:category></item><item><title>NOVA | Kings of Camouflage</title><link>http://video.pbs.org/video/1150618835/</link><description>Meet the cuttlefish, one of the brainiest, most bizarre animals in the ocean.</description><guid>http://video.pbs.org/video/1150618835/</guid><pubDate>Wed, 24 Jun 2009 11:41:34 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animal Behavior</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Animals</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Biodiversity</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><media:description>Meet the cuttlefish, one of the brainiest, most bizarre animals in the ocean.</media:description><media:content medium="video" duration="3200200" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/74/324/nova-003402-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>biology, cuttlefish, cephlopod, octopus, squid, marine, camouflage, anatomy</media:keywords><media:player url="http://video.pbs.org/video/1150618835/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animal Behavior</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Animals</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Biodiversity</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category></item><item><title>NOVA | Forgotten Genius</title><link>http://video.pbs.org/video/1140804005/</link><description>Against all odds, African-American chemist Percy Julian became a scientific pioneer.</description><guid>http://video.pbs.org/video/1140804005/</guid><pubDate>Thu, 4 Jun 2009 18:18:28 -0700</pubDate><category domain="PBS/taxonomy/topic">Culture</category><category domain="PBS/taxonomy/topic">Culture/People &amp; Profiles</category><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/United States</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Chemistry</category><media:description>Against all odds, African-American chemist Percy Julian became a scientific pioneer.</media:description><media:content medium="video" duration="6735226" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/64/979/nova-003403-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>racism, african-american, birth control pill, chemistry, compound, cortisone, Forgotten Genius, Glidden, Percy Julian, pharmaceutical, soybean</media:keywords><media:player url="http://video.pbs.org/video/1140804005/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Culture/People &amp; Profiles</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Chemistry</media:category></item><item><title>NOVA | Underwater Dream Machine</title><link>http://video.pbs.org/video/1205851939/</link><description>Follow one man&#39;s quest to engineer a submarine with panoramic views.</description><guid>http://video.pbs.org/video/1205851939/</guid><pubDate>Wed, 5 Aug 2009 18:51:57 -0700</pubDate><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Engineering</category><category domain="PBS/taxonomy/topic">Technology/Marine</category><category domain="PBS/taxonomy/topic">Technology/Transportation</category><media:description>Follow one man&#39;s quest to engineer a submarine with panoramic views.</media:description><media:content medium="video" duration="3175723" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/126/1014/nova-003319-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>explorer, 20000 Leagues Under the Sea, Alicia, deep-sea, panorama, Peter Robbins, submarine, underwater</media:keywords><media:player url="http://video.pbs.org/video/1205851939/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Engineering</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Marine</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Transportation</media:category></item><item><title>NOVA | Monster of the Milky Way</title><link>http://video.pbs.org/video/980039078/</link><description>Does a supermassive black hole lurk at the center of our galaxy?</description><guid>http://video.pbs.org/video/980039078/</guid><pubDate>Fri, 6 Mar 2009 11:15:53 -0800</pubDate><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Astronomy &amp; Space</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Space</category><media:description>Does a supermassive black hole lurk at the center of our galaxy?</media:description><media:content medium="video" duration="3113133" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/12/81/3314-thumb1.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-g</media:rating><media:keywords>Milky way, galaxy, star, supernova</media:keywords><media:player url="http://video.pbs.org/video/980039078/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science/Astronomy &amp; Space</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Space</media:category></item><item><title>NOVA | The Deadliest Plane Crash</title><link>http://video.pbs.org/video/1214003495/</link><description>NOVA investigates the worst aviation accident of all time.</description><guid>http://video.pbs.org/video/1214003495/</guid><pubDate>Thu, 13 Aug 2009 11:37:47 -0700</pubDate><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Transportation</category><category domain="PBS/taxonomy/topic">Technology</category><category domain="PBS/taxonomy/topic">Technology/Aviation</category><media:description>NOVA investigates the worst aviation accident of all time.</media:description><media:content medium="video" duration="2924692" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/134/783/nova-003315-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>flight, airplane, aviation, 747, crash, Pan Am, pilot, safety</media:keywords><media:player url="http://video.pbs.org/video/1214003495/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs/Transportation</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology/Aviation</media:category></item><item><title>NOVA | Storm That Drowned a City</title><link>http://video.pbs.org/video/1218652893/</link><description>What led to the devastating floods that Hurricane Katrina unleashed on New Orleans?</description><guid>http://video.pbs.org/video/1218652893/</guid><pubDate>Fri, 21 Aug 2009 07:02:19 -0700</pubDate><category domain="PBS/taxonomy/topic">History</category><category domain="PBS/taxonomy/topic">History/United States</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Humans &amp; Nature</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Oceans &amp; Aquatic Life</category><category domain="PBS/taxonomy/topic">Nature &amp; Environment/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs/Weather &amp; Natural Disasters</category><category domain="PBS/taxonomy/topic">Science</category><category domain="PBS/taxonomy/topic">Science/Earth Sciences</category><category domain="PBS/taxonomy/topic">Technology</category><media:description>What led to the devastating floods that Hurricane Katrina unleashed on New Orleans?</media:description><media:content medium="video" duration="3151899" /><media:thumbnail url="http://www-tc.pbs.org/cove-media/http/PBS_CP_NOVA/139/203/nova-003218-thumb.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-pg</media:rating><media:keywords>history, Mississippi, water, failure, flood, hurricane, Ivor van Heerden, Katrina, Lake Pontchartrain, levee, Louisiana, New Orleans, storm</media:keywords><media:player url="http://video.pbs.org/video/1218652893/" /><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History/United States</media:category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Nature &amp; 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