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NOVA

Alien Planets Revealed

  • Aired: 01/08/2014
  • 53:07
  • Rating: TV-G
It’s a golden age for planet hunters: NASA's Kepler mission has identified more than 3,500 potential planets orbiting stars beyond our Sun. Some of them, like a planet called Kepler-22b, might even be able to harbor life. How did we come upon this distant planet?
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Alien Planets Revealed
Alien Planets Revealed
Are we alone—and if not, what might the inhabitants of far-flung worlds look like?
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