Astronomers have so far identified over 1,800 exoplanets orbiting other stars. And the Kepler space telescope has identified several thousand more possibilities, some of which are either Earth-sized, or orbit within a habitable zone around the star — and therefore could have alien life. The possibilities are astounding, but they also beg another question: What…
from ExtremeTech http://ift.tt/1GXrlGF
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