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NASA

Submission + - Big Space: There are at least 100 billion planets in our galaxy alone (networkworld.com)

coondoggie writes: "Astronomers have, since they could see stars a night, tried to figure out how many planets were in the sky — and the latest count from scientists is massive — 100 billion just in our own Milky Way galaxy. A new study by astronomers at the California Institute of Technology (Caltech) made their estimate while analyzing five planets orbiting a star spotted by NASA's Kepler space telescope."
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Big Space: There are at least 100 billion planets in our galaxy alone

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