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.
Extremophiles, micro-organisms that can live in volcanos, space and the deep oceans, are still a mystery, but one scientist has found a way to use them to study other elements. Discovery News gets the scoop.
Do sci-fi villains have the moonbase market cornered, or will we be living on the moon some day too? Jorge Ribas finds out when NASA's making the next giant leap for mankind.
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.
Will future space exploration be done by robots or humans? The Director of the Planetary Science Division at NASA, James Green, answers whether future space exploration will be done by humans or robots in this Curiosity video.
NASA's Phoenix spacecraft is nearing its destination in the Martian arctic. The lander will take ice and soil samples as part of the closest examination of the planet to date. Jorge Ribas reports.
Maryland Blue Crab populations are dwindling and researchers are trying to find ways to replenish the stock. Kasey-Dee Gardner learns about technology being use to do just that.
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