100 billion alien planets fill our galaxy: studyQuicklink submitted by Kyle McDermott Permalink
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|Our Milky Way galaxy is home to at least 100 billion alien planets, and possibly many more, a new study suggests. 'It's a staggering number, if you think about it,' lead author Jonathan Swift, of Caltech in Pasadena, said in a statement. 'Basically there's one of these planets per star.' 'I usually try not to call things 'Rosetta stones,' but this is as close to a Rosetta stone as anything I've seen,' said co-author John Johnson, also of Caltech. 'It's like unlocking a language that we're trying to understand -- the language of planet formation.' Because the Kepler-32 star is smaller and less luminous than our sun, the five planets are likely not as heat-blasted as their tight orbits might imply. In fact, the outermost planet in the system appears to lie in the habitable zone, a range of distances that could support the existence of liquid water on a world's system.|
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