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     xmlns:media="http://search.yahoo.com/mrss/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:pbscontent="http://www.pbs.org/rss/pbscontent/" xmlns:pbsvideo="http://www.pbs.org/rss/pbsvideo/" ><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>Tue, 18 Jun 2013 01:54:04 -0400</lastBuildDate><pubDate>Tue, 18 Jun 2013 01:54:04 -0400</pubDate><item><title>NOVA | Life on Europa?</title><link>http://video.pbs.org/video/2365024278/</link><description>Europa’s icy surface may cover a salty ocean. Could life lurk in the depths?</description><guid>http://video.pbs.org/video/2365024278/</guid><pubDate>06/10/2013</pubDate><media:description>Europa’s icy surface may cover a salty ocean. Could life lurk in the depths?</media:description><media:content medium="video" duration="145000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86957/images/716218_ThumbnailCOVEDefault_20130610181012.jpg.resize.142x80.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/2365024278/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_01</title><link>http://video.pbs.org/video/2365018734/</link><description>CloudLab_Megastorm_01</description><guid>http://video.pbs.org/video/2365018734/</guid><pubDate>05/29/2013</pubDate><media:description>CloudLab_Megastorm_01</media:description><media:content medium="video" duration="35000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85926/images/705617_ThumbnailCOVEDefault_20130529162857.jpg.resize.142x80.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/2365018734/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_02</title><link>http://video.pbs.org/video/2365018955/</link><description>CloudLab_Megastorm_02</description><guid>http://video.pbs.org/video/2365018955/</guid><pubDate>05/29/2013</pubDate><media:description>CloudLab_Megastorm_02</media:description><media:content medium="video" duration="31000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85971/images/705637_ThumbnailCOVEDefault_20130529163723.jpg.resize.142x80.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/2365018955/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_03</title><link>http://video.pbs.org/video/2365019300/</link><description>CloudLab_Megastorm_03</description><guid>http://video.pbs.org/video/2365019300/</guid><pubDate>05/30/2013</pubDate><media:description>CloudLab_Megastorm_03</media:description><media:content medium="video" duration="101000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86037/images/706225_ThumbnailCOVEDefault_20130530103756.jpg.resize.142x80.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/2365019300/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_04</title><link>http://video.pbs.org/video/2365019341/</link><description>CloudLab_Megastorm_04</description><guid>http://video.pbs.org/video/2365019341/</guid><pubDate>05/30/2013</pubDate><media:description>CloudLab_Megastorm_04</media:description><media:content medium="video" duration="103000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86044/images/706264_ThumbnailCOVEDefault_20130530104749.jpg.resize.142x80.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/2365019341/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_05</title><link>http://video.pbs.org/video/2365019374/</link><description>CloudLab_Megastorm_05</description><guid>http://video.pbs.org/video/2365019374/</guid><pubDate>05/30/2013</pubDate><media:description>CloudLab_Megastorm_05</media:description><media:content medium="video" duration="64000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86048/images/706313_ThumbnailCOVEDefault_20130530110613.jpg.resize.142x80.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/2365019374/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_06</title><link>http://video.pbs.org/video/2365019384/</link><description>CloudLab_Megastorm_06</description><guid>http://video.pbs.org/video/2365019384/</guid><pubDate>05/30/2013</pubDate><media:description>CloudLab_Megastorm_06</media:description><media:content medium="video" duration="40000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86049/images/706343_ThumbnailCOVEDefault_20130530111229.jpg.resize.142x80.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/2365019384/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | CloudLab_Megastorm_07</title><link>http://video.pbs.org/video/2365019418/</link><description>CloudLab_Megastorm_07</description><guid>http://video.pbs.org/video/2365019418/</guid><pubDate>05/30/2013</pubDate><media:description>CloudLab_Megastorm_07</media:description><media:content medium="video" duration="187000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86055/images/706392_ThumbnailCOVEDefault_20130530114603.jpg.resize.142x80.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/2365019418/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Weather &amp; Natural Disasters</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Weather &amp; Natural Disasters</media:category><pbsvideo:content_type>Other</pbsvideo:content_type></item><item><title>NOVA | Oklahoma&#39;s Deadliest Tornadoes</title><link>http://video.pbs.org/video/2365019265/</link><description>Hear harrowing stories from survivors of Moore’s massive tornado and meet scientists who stalk these ferocious storms.</description><guid>http://video.pbs.org/video/2365019265/</guid><pubDate>05/30/2013</pubDate><media:description>Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.</media:description><media:content medium="video" duration="3186000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/86031/images/706185_ThumbnailCOVEDefault_20130530100213.jpg.resize.142x80.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/2365019265/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Environment</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Manhunt—Boston Bombers</title><link>http://video.pbs.org/video/2365018017/</link><description>Which technologies worked—and which didn&#39;t—in the race to track down the men behind the marathon attack?</description><guid>http://video.pbs.org/video/2365018017/</guid><pubDate>05/28/2013</pubDate><media:description>Which technologies worked in the race to track down the men behind the marathon attack?</media:description><media:content medium="video" duration="3187000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85800/images/703941_ThumbnailCOVEDefault_20130528100151.jpg.resize.142x80.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/2365018017/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Bomb Squad Robots</title><link>http://video.pbs.org/video/2365018505/</link><description>To keep their technicians safe from potential bombs, police departments use remote controlled robots to investigate.</description><guid>http://video.pbs.org/video/2365018505/</guid><pubDate>05/28/2013</pubDate><media:description>Remote controlled robots keep police department technicians safe from potential bombs.</media:description><media:content medium="video" duration="159000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85887/images/704796_ThumbnailCOVEDefault_20130528163712.jpg.resize.142x80.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/2365018505/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Making More Stuff Preview</title><link>http://video.pbs.org/video/2365016541/</link><description>Host David Pogue explores the cutting-edge research behind a new wave of innovation.</description><guid>http://video.pbs.org/video/2365016541/</guid><pubDate>05/23/2013</pubDate><media:description>Host David Pogue explores the cutting-edge research behind a new wave of innovation.</media:description><media:content medium="video" duration="72000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85521/images/700672_ThumbnailCOVEDefault_20130523155859.jpg.resize.142x80.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/2365016541/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Energy &amp; Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Energy &amp; Environment</media:category><category domain="PBS/taxonomy/topic">Society</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Society</media:category><category domain="PBS/taxonomy/topic">Transportation &amp; Infrastructure</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Transportation &amp; Infrastructure</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Oklahoma&#39;s Deadliest Tornadoes Preview</title><link>http://video.pbs.org/video/2365016316/</link><description>Hear harrowing stories from survivors of Moore’s massive tornado and meet scientists who stalk these ferocious storms.</description><guid>http://video.pbs.org/video/2365016316/</guid><pubDate>05/23/2013</pubDate><media:description>Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85484/images/700037_ThumbnailCOVEDefault_20130523102915.jpg.resize.142x80.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/2365016316/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | The Egyptian Bow</title><link>http://video.pbs.org/video/2365014635/</link><description>See how the ancient Egyptians built their deadly composite bows.</description><guid>http://video.pbs.org/video/2365014635/</guid><pubDate>05/20/2013</pubDate><media:description>See how the ancient Egyptians built their deadly composite bows.</media:description><media:content medium="video" duration="230000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/85182/images/696920_ThumbnailCOVEDefault_20130520134146.jpg.resize.142x80.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/2365014635/" /><category domain="PBS/taxonomy/topic">History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><category domain="PBS/taxonomy/topic">Civilizations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Civilizations</media:category><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | How the 1918 Flu Infected People</title><link>http://video.pbs.org/video/2365008716/</link><description>The 1918 flu virus infects deep in the lungs, which may have made it more deadly.</description><guid>http://video.pbs.org/video/2365008716/</guid><pubDate>05/08/2013</pubDate><media:description>The 1918 flu virus infects deep in the lungs, which may have made it more deadly.</media:description><media:content medium="video" duration="25000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/84097/images/686081_ThumbnailCOVEDefault_20130508165324.jpg.resize.142x80.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/2365008716/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | What Made the 1918 Flu So Deadly?</title><link>http://video.pbs.org/video/2365008699/</link><description>The 1918 flu killed at least 50 million people, more than died from battle in World War I.</description><guid>http://video.pbs.org/video/2365008699/</guid><pubDate>05/08/2013</pubDate><media:description>The 1918 flu killed at least 50 million people, more than died from battle in World War I.</media:description><media:content medium="video" duration="88000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/84093/images/686071_ThumbnailCOVEDefault_20130508165027.jpg.resize.142x80.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/2365008699/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Manhunt—Boston Bombers Preview</title><link>http://video.pbs.org/video/2365004015/</link><description>Follow the manhunt, step-by-step, for the suspects in the Boston Marathon bombings.</description><guid>http://video.pbs.org/video/2365004015/</guid><pubDate>04/29/2013</pubDate><media:description>Follow the manhunt, step-by-step, for the suspects in the Boston Marathon bombings.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/83205/images/695728_ThumbnailCOVEDefault_20130517164639.jpg.resize.142x80.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/2365004015/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Australia&#39;s First 4 Billion Years: Strange Creatures</title><link>http://video.pbs.org/video/2365004378/</link><description>After a massive extinction, diverse marsupials came to dominate this isolated continent.</description><guid>http://video.pbs.org/video/2365004378/</guid><pubDate>04/30/2013</pubDate><media:description>After a massive extinction, diverse marsupials came to dominate this isolated continent.</media:description><media:content medium="video" duration="890000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/83275/images/677528_ThumbnailCOVEDefault_20130430153411.jpg.resize.142x80.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/2365004378/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Environment</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Australia&#39;s First 4 Billion Years: Monsters</title><link>http://video.pbs.org/video/2365000290/</link><description>Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.</description><guid>http://video.pbs.org/video/2365000290/</guid><pubDate>04/22/2013</pubDate><media:description>Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.</media:description><media:content medium="video" duration="695000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/82495/images/669190_ThumbnailCOVEDefault_20130422153657.jpg.resize.142x80.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/2365000290/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Fertilizing the Amazon</title><link>http://video.pbs.org/video/2365000194/</link><description>Nutrient-rich dust from the Saharan Desert blows across the ocean to the Amazon.</description><guid>http://video.pbs.org/video/2365000194/</guid><pubDate>04/22/2013</pubDate><media:description>Nutrient-rich dust from the Saharan Desert blows across the ocean to the Amazon.</media:description><media:content medium="video" duration="207000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/82478/images/668940_ThumbnailCOVEDefault_20130422133845.jpg.resize.142x80.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/2365000194/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Environment</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Australia: Life Explodes</title><link>http://video.pbs.org/video/2364995158/</link><description>Fossils reveal how life’s explosion in the ocean was recreated on dry land.</description><guid>http://video.pbs.org/video/2364995158/</guid><pubDate>04/12/2013</pubDate><media:description>Fossils reveal how life’s explosion in the ocean was recreated on dry land.</media:description><media:content medium="video" duration="795000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/81568/images/659987_ThumbnailCOVEDefault_20130412120042.jpg.resize.142x80.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/2364995158/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Flu Probabilities</title><link>http://video.pbs.org/video/2364997465/</link><description>What is the chance a new flu strain will jump from birds to people?</description><guid>http://video.pbs.org/video/2364997465/</guid><pubDate>04/17/2013</pubDate><media:description>What is the chance a new flu strain will jump from birds to people?</media:description><media:content medium="video" duration="113000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/81989/images/664192_ThumbnailCOVEDefault_20130417112606.jpg.resize.142x80.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/2364997465/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Australia&#39;s First 4 Billion Years: Awakening</title><link>http://video.pbs.org/video/2364992087/</link><description>Australia’s ancient landscape holds clues to Earth&#39;s early history and the beginning of life.</description><guid>http://video.pbs.org/video/2364992087/</guid><pubDate>04/08/2013</pubDate><media:description>Australia’s landscape holds clues to Earth&#39;s early history and the beginning of life.</media:description><media:content medium="video" duration="998000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/81007/images/654848_ThumbnailCOVEDefault_20130408104803.jpg.resize.142x80.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/2364992087/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Bed Bug Sex</title><link>http://video.pbs.org/video/2364993588/</link><description>Gross Science: How bed bugs reproduce is the stuff of nightmares.</description><guid>http://video.pbs.org/video/2364993588/</guid><pubDate>04/10/2013</pubDate><media:description>Gross Science: How bed bugs reproduce is the stuff of nightmares.</media:description><media:content medium="video" duration="133000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/81288/images/657380_ThumbnailCOVEDefault_20130410134154.jpg.resize.142x80.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/2364993588/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Ancient Computer</title><link>http://video.pbs.org/video/2364988981/</link><description>A Greek shipwreck holds the remains of an intricate bronze machine that turns out to be the world’s first computer.</description><guid>http://video.pbs.org/video/2364988981/</guid><pubDate>04/01/2013</pubDate><media:description>Learn about the world’s first computer, which was found in a Greek shipwreck.</media:description><media:content medium="video" duration="3173000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/80422/images/648476_ThumbnailCOVEDefault_20130401140014.jpg.resize.142x80.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/2364988981/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Astronomy</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Astronomy</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Ancient Computer Sneak Peek</title><link>http://video.pbs.org/video/2364989703/</link><description>An ancient Greek computer could predict eclipses with impressive accuracy.</description><guid>http://video.pbs.org/video/2364989703/</guid><pubDate>04/02/2013</pubDate><media:description>An ancient Greek computer could predict eclipses with impressive accuracy.</media:description><media:content medium="video" duration="278000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/80548/images/650098_ThumbnailCOVEDefault_20130402183217.jpg.resize.142x80.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/2364989703/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Astronomy</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Astronomy</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Space</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Space</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Rare Earth Elements</title><link>http://video.pbs.org/video/2364989362/</link><description>David Pogue learns about rare earth elements.</description><guid>http://video.pbs.org/video/2364989362/</guid><pubDate>04/02/2013</pubDate><media:description>David Pogue learns about rare earth elements.</media:description><media:content medium="video" duration="257000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/80481/images/649295_ThumbnailCOVEDefault_20130402101240.jpg.resize.142x80.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/2364989362/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Meteor Strike</title><link>http://video.pbs.org/video/2358778286/</link><description>A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?</description><guid>http://video.pbs.org/video/2358778286/</guid><pubDate>03/25/2013</pubDate><media:description>A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?</media:description><media:content medium="video" duration="3172000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/79735/images/641309_ThumbnailCOVEDefault_20130325101948.jpg.resize.142x80.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/2358778286/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Astronomy</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Astronomy</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Meteor Strike Preview</title><link>http://video.pbs.org/video/2344107964/</link><description>A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?</description><guid>http://video.pbs.org/video/2344107964/</guid><pubDate>03/14/2013</pubDate><media:description>A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?</media:description><media:content medium="video" duration="146000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/72424/images/582603_ThumbnailCOVEDefault_20130314151114.jpg.resize.142x80.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/2344107964/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Astronomy</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Astronomy</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | CHNOPS: Ingredients for Life</title><link>http://video.pbs.org/video/2342776136/</link><description>The basic building blocks for life are made of just six elements.</description><guid>http://video.pbs.org/video/2342776136/</guid><pubDate>03/13/2013</pubDate><media:description>The basic building blocks for life are made of just six elements.</media:description><media:content medium="video" duration="156000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/72303/images/581328_ThumbnailCOVEDefault_20130313133442.jpg.resize.142x80.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/2342776136/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Australia: Monsters Preview</title><link>http://video.pbs.org/video/2342257366/</link><description>Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.</description><guid>http://video.pbs.org/video/2342257366/</guid><pubDate>03/12/2013</pubDate><media:description>Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/72228/images/580581_ThumbnailCOVEDefault_20130312123458.jpg.resize.142x80.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/2342257366/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Australia: Strange Creatures Preview</title><link>http://video.pbs.org/video/2342263144/</link><description>After a massive extinction, diverse marsupials came to dominate this isolated continent.</description><guid>http://video.pbs.org/video/2342263144/</guid><pubDate>03/12/2013</pubDate><media:description>After a massive extinction, diverse marsupials came to dominate this isolated continent.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/72235/images/580591_ThumbnailCOVEDefault_20130312124449.jpg.resize.142x80.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/2342263144/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Animals</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Animals</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Australia: Awakening Preview</title><link>http://video.pbs.org/video/2341199727/</link><description>Australia’s ancient landscape holds clues to Earth&#39;s early history and the beginning of life.</description><guid>http://video.pbs.org/video/2341199727/</guid><pubDate>03/07/2013</pubDate><media:description>Australia’s landscape holds clues to Earth&#39;s early history and the beginning of life.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/71761/images/575928_ThumbnailCOVEDefault_20130307131311.jpg.resize.142x80.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/2341199727/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Australia: Life Explodes Preview</title><link>http://video.pbs.org/video/2341202949/</link><description>Fossils reveal how life’s explosion in the ocean was recreated on dry land.</description><guid>http://video.pbs.org/video/2341202949/</guid><pubDate>03/07/2013</pubDate><media:description>Fossils reveal how life’s explosion in the ocean was recreated on dry land.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/71763/images/576029_ThumbnailCOVEDefault_20130307132713.jpg.resize.142x80.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/2341202949/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Electromagnetic Spectrum</title><link>http://video.pbs.org/video/2339245217/</link><description>To unveil Earth&#39;s processes, satellites use portions of the electromagnetic spectrum that are invisible to our eyes.</description><guid>http://video.pbs.org/video/2339245217/</guid><pubDate>02/27/2013</pubDate><media:description>Satellites use portions of the electromagnetic spectrum that are invisible to our eyes.</media:description><media:content medium="video" duration="44000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/71090/images/570064_ThumbnailCOVEDefault_20130227164914.jpg.resize.142x80.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/2339245217/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | MODIS Sensor</title><link>http://video.pbs.org/video/2339246817/</link><description>The MODIS sensors aboard the Terra and Aqua satellites capture daily updates of changes in the Earth&#39;s surface.</description><guid>http://video.pbs.org/video/2339246817/</guid><pubDate>02/27/2013</pubDate><media:description>The MODIS sensors on the Terra and Aqua satellites capture changes in the Earth&#39;s surface.</media:description><media:content medium="video" duration="26000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/71094/images/570044_ThumbnailCOVEDefault_20130227164749.jpg.resize.142x80.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/2339246817/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | The Looming Satellite Gap</title><link>http://video.pbs.org/video/2339246841/</link><description>We know more about the Earth now than ever before, but that knowledge is in jeopardy as many Earth-observing satellites are nearing the end of their lives.</description><guid>http://video.pbs.org/video/2339246841/</guid><pubDate>02/27/2013</pubDate><media:description>Many Earth-observing satellites are nearing the end of their lives.</media:description><media:content medium="video" duration="111000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/71097/images/570024_ThumbnailCOVEDefault_20130227164507.jpg.resize.142x80.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/2339246841/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Mind of a Rampage Killer</title><link>http://video.pbs.org/video/2332614200/</link><description>Can science help us understand why some people commit horrific acts of mass murder?</description><guid>http://video.pbs.org/video/2332614200/</guid><pubDate>02/06/2013</pubDate><media:description>Can science help us understand why some people commit horrific acts of mass murder?</media:description><media:content medium="video" duration="3173000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/69279/images/558103_ThumbnailCOVEDefault_20130214171216.jpg.resize.142x80.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/2332614200/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><category domain="PBS/taxonomy/topic">Psychology &amp; The Mind</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Psychology &amp; The Mind</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Mind of a Rampage Killer Preview</title><link>http://video.pbs.org/video/2335213768/</link><description>Can science help us understand why some people commit horrific acts of mass murder?</description><guid>http://video.pbs.org/video/2335213768/</guid><pubDate>02/14/2013</pubDate><media:description>Can science help us understand why some people commit horrific acts of mass murder?</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/69994/images/557841_ThumbnailCOVEDefault_20130214154201.jpg.resize.142x80.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/2335213768/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Psychology &amp; The Mind</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Psychology &amp; The Mind</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | The Tongue-Eating Parasite</title><link>http://video.pbs.org/video/2334359551/</link><description>Produced, edited, and animated by Anna Rothschild Production Assistant Allison Eck Special Thanks Stefanie Kaiser Original Footage © WGBH Educational Foundation 2013 ADDITIONAL MEDIA CREDITS (Ceratothoa sp in Blacktail) Host: Diplodus sargus sargus (common names: blacktail or white seabream) Locality: Tsitsikamma National Park, Eastern Cape, South Africa © Nico Smit</description><guid>http://video.pbs.org/video/2334359551/</guid><pubDate>02/12/2013</pubDate><media:description>Gross science: This parasite crawls into a fish’s mouth and replaces its tongue.</media:description><media:content medium="video" duration="154000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/69747/images/555211_ThumbnailCOVEDefault_20130212141413.jpg.resize.142x80.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/2334359551/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Biology &amp; Chemistry</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Biology &amp; Chemistry</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Earth from Space</title><link>http://video.pbs.org/video/2334144059/</link><description>Detailed satellite images reveal the web of connections that sustain life on Earth.</description><guid>http://video.pbs.org/video/2334144059/</guid><pubDate>02/11/2013</pubDate><media:description>Detailed satellite images reveal the web of connections that sustain life on Earth.</media:description><media:content medium="video" duration="6772000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/69669/images/554149_ThumbnailCOVEDefault_20130211155433.jpg.resize.142x80.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/2334144059/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Environment</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Space</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Space</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | The Volga Trade Route</title><link>http://video.pbs.org/video/2329159499/</link><description>The Vikings didn’t invent crucible steel, so where did it come from? Many experts believe that the Volga trade route supplied Vikings with prized crucible steel from the Middle East, where people were more practiced in the art of forging it.</description><guid>http://video.pbs.org/video/2329159499/</guid><pubDate>01/25/2013</pubDate><media:description>The Vikings may have trekked all the way to Iran in search of crucible steel.</media:description><media:content medium="video" duration="178000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68241/images/549568_ThumbnailCOVEDefault_20130205161934.jpg.resize.142x80.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/2329159499/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | When Hurricane Sandy Went Rogue</title><link>http://video.pbs.org/video/2332159802/</link><description>Hurricane Sandy was born just like any other tropical storm: the warm water acts as a “heat engine,” and produces strong winds. But an unfortunate turn catapulted Sandy into the Northeast—making it unusually devastating for those living on or near the coast.</description><guid>http://video.pbs.org/video/2332159802/</guid><pubDate>02/05/2013</pubDate><media:description>What started out as a tropical storm evolved into one of New York City’s worst nightmares.</media:description><media:content medium="video" duration="126000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/69166/images/549578_ThumbnailCOVEDefault_20130205162013.jpg.resize.142x80.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/2332159802/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Building Pharaoh&#39;s Chariot</title><link>http://video.pbs.org/video/2331305481/</link><description>A team uncovers the advanced engineering behind an ancient Egyptian war machine.</description><guid>http://video.pbs.org/video/2331305481/</guid><pubDate>02/01/2013</pubDate><media:description>A team uncovers the advanced engineering behind an ancient Egyptian war machine.</media:description><media:content medium="video" duration="3172000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68910/images/546749_ThumbnailCOVEDefault_20130201154918.jpg.resize.142x80.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/2331305481/" /><category domain="PBS/taxonomy/topic">History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><category domain="PBS/taxonomy/topic">Civilizations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Civilizations</media:category><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Chariot Weapons</title><link>http://video.pbs.org/video/2330357202/</link><description>Military historian Mike Loades explores the weapons that the ancient Egyptians used in war. Then, he takes them on a one-of-a-kind chariot ride.</description><guid>http://video.pbs.org/video/2330357202/</guid><pubDate>01/29/2013</pubDate><media:description>A military historian demonstrates how the ancient Egyptians fought from their chariots.</media:description><media:content medium="video" duration="289000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68522/images/543483_ThumbnailCOVEDefault_20130130104123.jpg.resize.142x80.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/2330357202/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Transportation &amp; Infrastructure</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Transportation &amp; Infrastructure</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Egyptian Armor</title><link>http://video.pbs.org/video/2330357518/</link><description>Protective armor was a necessity in Egyptian chariot warfare. Military historian Mike Loades explains what made it so strong.</description><guid>http://video.pbs.org/video/2330357518/</guid><pubDate>01/29/2013</pubDate><media:description>How did the ancient Egyptians protect themselves during battle?</media:description><media:content medium="video" duration="171000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68523/images/543493_ThumbnailCOVEDefault_20130130104407.jpg.resize.142x80.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/2330357518/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Space Shuttle Disaster - Preview</title><link>http://video.pbs.org/video/2329103797/</link><description>On February 1, 2003, the space shuttle Columbia disintegrated just 16 minutes before it was due to land. All seven astronauts aboard perished, and the implications for the future of the space shuttle program were enormous. Through interviews with astronauts and their families, and with members of the Columbia Accident Investigation Board, take a look at the Columbia tragedy — and at NASA itself.</description><guid>http://video.pbs.org/video/2329103797/</guid><pubDate>01/25/2013</pubDate><media:description>Airs Thursday, January 31, 2013 at 10:00 p.m. ET/PT. Check your local listings.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68181/images/541609_ThumbnailCOVEDefault_20130128111824.jpg.resize.142x80.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/2329103797/" /><category domain="PBS/taxonomy/topic">History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><category domain="PBS/taxonomy/topic">Modern</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Modern</media:category><category domain="PBS/taxonomy/topic">News &amp; Public Affairs</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">News &amp; Public Affairs</media:category><category domain="PBS/taxonomy/topic">Government</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Government</media:category><category domain="PBS/taxonomy/topic">Science &amp; Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Technology</media:category><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Space</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Space</media:category><pbsvideo:content_type>Promotion</pbsvideo:content_type></item><item><title>NOVA | Who Killed Lindbergh&#39;s Baby?</title><link>http://video.pbs.org/video/2329682404/</link><description>Expert investigators reexamine one of the greatest murder mysteries of all time.</description><guid>http://video.pbs.org/video/2329682404/</guid><pubDate>01/28/2013</pubDate><media:description>Expert investigators reexamine one of the greatest murder mysteries of all time.</media:description><media:content medium="video" duration="3196000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/68356/images/541490_ThumbnailCOVEDefault_20130128102843.jpg.resize.142x80.jpg" type="image/jpeg" height="60" width="142" /><media:rating scheme="urn:v-chip">tv-14</media:rating><media:player url="http://video.pbs.org/video/2329682404/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | Parachute Problems</title><link>http://video.pbs.org/video/2327064840/</link><description>While testing Curiosity’s parachute in the world’s largest wind tunnel, JPL scientists and engineers were confounded by a failed trial run. The parachute had never failed to open in the past, so why this strange anomaly? By replicating the error and analyzing it in high-resolution footage, they were able to pinpoint the problem.</description><guid>http://video.pbs.org/video/2327064840/</guid><pubDate>01/18/2013</pubDate><media:description>NASA untangles why a parachute failed during tests prior to the Curiosity landing.</media:description><media:content medium="video" duration="174000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67701/images/531114_ThumbnailCOVEDefault_20130123132619.jpg.resize.142x80.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/2327064840/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Astronomy</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Astronomy</media:category><category domain="PBS/taxonomy/topic">Physics &amp; Mathematics</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Physics &amp; Mathematics</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Space</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Space</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Scripting the Truth</title><link>http://video.pbs.org/video/2328067378/</link><description>An innovative computer-based handwriting analysis technique helps NOVA dig deeper into the kidnapping of Charles Lindbergh’s baby. But while the results might sway investigators in a certain direction, they certainly aren’t definitive.</description><guid>http://video.pbs.org/video/2328067378/</guid><pubDate>01/22/2013</pubDate><media:description>Handwriting analysis technology helps scientists figure out who killed Lindbergh&#39;s baby.</media:description><media:content medium="video" duration="117000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67913/images/531204_ThumbnailCOVEDefault_20130123140705.jpg.resize.142x80.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/2328067378/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Rise of the Drones</title><link>http://video.pbs.org/video/2326108547/</link><description>Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes.</description><guid>http://video.pbs.org/video/2326108547/</guid><pubDate>01/16/2013</pubDate><media:description>Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes.</media:description><media:content medium="video" duration="3184000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67429/images/525505_ThumbnailCOVEDefault_20130116114113.jpg.resize.142x80.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/2326108547/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item><item><title>NOVA | A Next-Generation Drone</title><link>http://video.pbs.org/video/2325494758/</link><description>The X-47B prototype can land on a flight deck without input from a pilot.</description><guid>http://video.pbs.org/video/2325494758/</guid><pubDate>01/14/2013</pubDate><media:description>The X-47B prototype can land on a flight deck without input from a pilot.</media:description><media:content medium="video" duration="48000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67189/images/524678_ThumbnailCOVEDefault_20130115134916.jpg.resize.142x80.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/2325494758/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Being a Drone Operator</title><link>http://video.pbs.org/video/2325492147/</link><description>A UAV pilot describes what it’s like to conduct a drone strike.</description><guid>http://video.pbs.org/video/2325492147/</guid><pubDate>01/14/2013</pubDate><media:description>A UAV pilot describes what it’s like to conduct a drone strike.</media:description><media:content medium="video" duration="57000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67187/images/524688_ThumbnailCOVEDefault_20130115134937.jpeg.resize.142x80.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/2325492147/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Independent UAVs</title><link>http://video.pbs.org/video/2325500794/</link><description>A DARPA researcher describes what would constitute a breakthrough in UAV autonomy.</description><guid>http://video.pbs.org/video/2325500794/</guid><pubDate>01/14/2013</pubDate><media:description>A DARPA researcher describes what would constitute a breakthrough in UAV autonomy.</media:description><media:content medium="video" duration="30000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67192/images/524658_ThumbnailCOVEDefault_20130115134830.jpg.resize.142x80.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/2325500794/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Swarming Drones</title><link>http://video.pbs.org/video/2325494765/</link><description>A University of Pennsylvania lab is developing tiny drones that sense their environment.</description><guid>http://video.pbs.org/video/2325494765/</guid><pubDate>01/14/2013</pubDate><media:description>A University of Pennsylvania lab is developing tiny drones that sense their environment.</media:description><media:content medium="video" duration="172000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67190/images/524668_ThumbnailCOVEDefault_20130115134853.jpg.resize.142x80.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/2325494765/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | What Drones Can See</title><link>http://video.pbs.org/video/2325492143/</link><description>An engineer describes the next-generation surveillance sensor for UAVs, called ARGUS.</description><guid>http://video.pbs.org/video/2325492143/</guid><pubDate>01/14/2013</pubDate><media:description>An engineer describes the next-generation surveillance sensor for UAVs, called ARGUS.</media:description><media:content medium="video" duration="172000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/67186/images/524648_ThumbnailCOVEDefault_20130115134209.jpg.resize.142x80.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/2325492143/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Technology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Technology</media:category><category domain="PBS/taxonomy/topic">Military &amp; Espionage</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Military &amp; Espionage</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | A Neanderthal Burial</title><link>http://video.pbs.org/video/2324065933/</link><description>Until recently, scientists have encountered scant evidence of Neanderthal ritual or religious practice. A new discovery, though, suggests that Neanderthals—much like today’s bear hunters—ceremoniously cut off panther paws and kept them as trophies.</description><guid>http://video.pbs.org/video/2324065933/</guid><pubDate>01/08/2013</pubDate><media:description>Scientists think a posed body alongside a panther paw are evidence of Neanderthal rites.</media:description><media:content medium="video" duration="136000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/66760/images/518798_ThumbnailCOVEDefault_20130109132217.jpg.resize.142x80.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/2324065933/" /><category domain="PBS/taxonomy/topic">History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><category domain="PBS/taxonomy/topic">Ancient &amp; Classical</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Ancient &amp; Classical</media:category><category domain="PBS/taxonomy/topic">Archaeology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Archaeology</media:category><category domain="PBS/taxonomy/topic">Prehistoric</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Prehistoric</media:category><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Neanderthal Superglue</title><link>http://video.pbs.org/video/2324065913/</link><description>The world’s first industrial process likely began with the Neanderthals. In this video, watch as NOVA reenacts the Neanderthal technique of pitch extraction through a complex called dry distillation.</description><guid>http://video.pbs.org/video/2324065913/</guid><pubDate>01/08/2013</pubDate><media:description>This “superglue” suggests Neanderthals weren’t as primitive as once thought.</media:description><media:content medium="video" duration="178000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/66758/images/518808_ThumbnailCOVEDefault_20130109132241.jpg.resize.142x80.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/2324065913/" /><category domain="PBS/taxonomy/topic">History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">History</media:category><category domain="PBS/taxonomy/topic">Ancient &amp; Classical</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Ancient &amp; Classical</media:category><category domain="PBS/taxonomy/topic">Archaeology</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Archaeology</media:category><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Environment</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Environment</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Scanning the Dead</title><link>http://video.pbs.org/video/2324065723/</link><description>Virtual autopsies paint remarkably informative pictures of a body&#39;s post-mortem condition. Watch Dr. Anders Persson and his team get under the virtual skin of a victim in order to uncover more information about his death.</description><guid>http://video.pbs.org/video/2324065723/</guid><pubDate>01/08/2013</pubDate><media:description>Virtual autopsies give coroners incredibly detailed and telling images of victims’ bodies.</media:description><media:content medium="video" duration="130000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/66756/images/518818_ThumbnailCOVEDefault_20130109132350.jpg.resize.142x80.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/2324065723/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Forensics &amp; Investigations</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Forensics &amp; Investigations</media:category><pbsvideo:content_type>Segment</pbsvideo:content_type></item><item><title>NOVA | Decoding Neanderthals</title><link>http://video.pbs.org/video/2323758207/</link><description>Shared DNA reveals a deep connection with our long-vanished human cousins.</description><guid>http://video.pbs.org/video/2323758207/</guid><pubDate>01/07/2013</pubDate><media:description>Shared DNA reveals a deep connection with our long-vanished human cousins.</media:description><media:content medium="video" duration="3187000" /><media:thumbnail url="http://pbs.merlin.cdn.prod.s3.amazonaws.com/Video%20Asset/pbs/nova/66502/images/515562_ThumbnailCOVEDefault_20130107095946.jpg.resize.142x80.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/2323758207/" /><category domain="PBS/taxonomy/topic">Science &amp; Nature</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Science &amp; Nature</media:category><category domain="PBS/taxonomy/topic">Earth</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Earth</media:category><category domain="PBS/taxonomy/topic">Natural History</category><media:category scheme="http://www.pbs.org/rss/pbscontent/taxonomy/topic">Natural History</media:category><pbsvideo:content_type>Episode</pbsvideo:content_type></item></channel></rss>
