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life on other planets

A Second Earth in Our Solar System

Traveling to another Earth-like world just got a lot easier. It turns out that there may be many other dirt-and-water planets lurking at the edges of our solar system in places like the Oort Cloud. These planets, which could be roughly the size of our own, would contain all the elements we need for life. They're just sitting in a cold, dimly-lit part of the solar system, waiting to be defrosted and colonized. Yesterday, NASA scientists announced that this changes the prognosis for nearby livable planets. More »

4:30 PM on Mon Feb 18 2008
By Annalee Newitz
63,881 views, 40 comments

Latest by n/a: Has anyone even theorized how one might actually 'drag' anything roughly the size of earth anywhere? I just can't imagine a realistic technology that is even plausable in the realm of our current understanding of physics. more »

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Is There Life On Saturn's Moon?

Do these water jets come from an underground ocean orbiting Saturn? If so, it could nurture the only extraterrestrial life-forms in our solar system. But one scientist says that water is too pure to come from a buried ocean on Enceladus, one of Saturn's moons. More »

1:30 PM on Tue Dec 18 2007
By charliejane
358 views, Comment