Several NASA scientists believe it is only a matter of time before we find out that we are not alone in this solar system.
There are several signs that point to life around the Milky Way. NASA's Kepler space telescopes suggest that rocky planets like Earth and Mars are likely more common in the galaxy than gas planets like Jupiter and Saturn, Space.com reports, and could all be habitable. The Milky Way is a "soggy place" Paul Hertz, director of NASA's Astrophysics Division said, and "we can see water in the interstellar clouds from which planetary systems and stellar systems form." NASA also plans to send out more rovers to Mars and the icy moon Europa, in order to determine if life really could exist there.
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