Water on Mars | Are We Alone?

From the creator

Mars and Earth share surprising similarities, which leads many scientists to think Mars has water. | For more Are We Alone?, visit http://science.discovery.com/tv-shows/are-we-alone/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_user=sciencechannel

Published 2013-03-25 · Watch on YouTube ↗
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