— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...

WASHINGTON — A newly discovered planet is eerily similar to Earth and is sitting outside our solar system in what seems to be the ideal place for life, except for one hitch. It’s a bit too big. The ...

WASHINGTON — A newly discovered planet is eerily similar to Earth and is sitting outside our solar system in what seems to be the ideal place for life, except for one hitch. It's a bit too big. The ...

NASA scientists announced the discovery of the first habitable planet outside of our solar system on Monday. Kepler-22b, a mere 600 light years away, orbits a “Sun-like” star that is 2.4 times the ...

This diagram compares our own solar system to Kepler-22, a star system containing the first “habitable zone” planet discovered by NASA’s Kepler mission. The habitable zone is the sweet spot around a ...

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 ...

(CNN, By Elizabeth Landau) — Kepler-22b is the first confirmed planet in the “habitable zone,” the area around a star where a planet could exist with liquid water on its surface, that has been ...

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 ...