Six hundred and thirty five light years from Earth lies a world that continues to capture the imagination of scientists and ...

Ever wondered what would happen if we actually nuked Kepler-22b?

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It's several times larger than Earth and 600 light years away, but a newly discovered planet, Kepler-22b, is also said to be 72 degrees--and NASA's Kepler mission has named it as a planet that's just ...

If there's life out there, scientists are getting closer to finding where it might reside. On Monday, astronomers announced the discovery of the first planet in the habitable zone of a sunlike star.

Alternately, while the rocky planet explanation is more likely, it's possible that these planets might be something we've never seen in our solar system: a water world. From L to R: Kepler-22b, Kepler ...

The same team that recently discovered the possibly water-covered, life-supporting planet, Kepler 22b, two weeks ago announced the discovery of two more Earth-sized planets on Monday. Ars Technica's ...