How the Universe Works Season 3 Episode 9 The Search for a Second Earth ( Air Date 2014-09-03 ) Genre Documentary category. Overview "Is there another Earth out there with liquid oceans, rocky continents and life like us? Astronomers seek the answer with spectroscopy, direct imaging and telescopes. They hope to find evidence of atmospheres, magnetospheres and signs of life.".
How the Universe Works Season 3 Episode 9 The Search for a Second Earth
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