Methane seems to be the new buzz word when it comes to finding Martin life. Discovery Channel’s Kasey-Dee Gardner finds out why that's the case.
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Have you ever wondered if the human race could survive on Mars? Discovery Channel Space Producer Dave Mosher gets the answer to this question and more.
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Will the real ET be little green men or little green bacteria? SETI Institute Senior Astronomer Seth Shostak theorizes what our first alien encounter might be like.
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Astrophysicist Andy Puckett explores the universe, especially undiscovered asteroids that could one day smack into our planet. Jorge Ribas gets the odds on our survival.
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