This artist illustration shows what it might be like to stand on the surface of the planet Kepler-186f, the first-ever Earth-size planet to be found in the habitable zone of its star. It's the brass ...

Explore the stunning and mysterious realities of planets beyond our own. This video delves into fascinating celestial bodies, ...

The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone—a range of distance from a star where liquid water might pool on the ...

Sifting through observations from tens of thousands of distant stars, astronomers say they have discovered the first definitive Earth-sized planet that orbits in a habitable zone where water could ...

Scientists have discovered and confirmed the most Earth-like planet yet using the Kepler Space Telescope, offering hope of life elsewhere and of a future for the handicapped spacecraft. Boulder-based ...

Two of the earliest Earth-ish exoplanet finds are now more exciting targets in the search for habitable worlds beyond this rock. Eric Mack has been a CNET contributor since 2011. Eric and his family ...

THE hunt for life in space has taken a step forward with the discovery of “Earth’s cousin” orbiting a distant star. The exoplanet dubbed Kepler-186f was first spotted by scientists using NASA’s Kepler ...

The search for extraterrestrial life zeroed in a bit today as NASA announced that its unmanned Kepler Space Telescope detected the most Earth-like planet yet found beyond the Solar System. Named ...

NASA's Kepler telescope has discovered a veritable bounty of alien planets, but none of them have been quite like Earth -- until now. Today, the agency announced that Kepler-186f is the first ...