The project had an exciting close to the 2011 calendar year. A very successful Kepler Science Conference was held Dec. 5-9, 2011 at NASA Ames Research Center, Moffett Field, Calif. The conference ...

This story was updated at 2:40 EST. Astronomers on Tuesday (Dec. 20) announced the discovery of the first two Earth-size alien planets — a historic find for sure, but the newfound worlds didn't ...

Two newfound Earth-size planets are probably the charred survivors of a near-death encounter with their fading parent star, scientists say. The planetary pair, discovered using NASA's Kepler space ...

A new analysis of data from NASA’s Kepler spacecraft increases the number of habitable exoplanets thought to exist in this galaxy. By Dennis Overbye After nine and a half years in orbit, 530,506 stars ...

Before Tuesday, there were no shortage of theories about what NASA’s discovery announcement would entail. (Full disclosure: I was responsible for much of that speculation.) Then Tuesday hit and we ...

NASA's recent discovery of Kepler-186f, the first habitable Earth-sized planet is big news in humankind's long search for extraterrestrial life. A universe full of exoplanets: Thanks to the Kepler ...

NASA’s Kepler mission has discovered the first Earth-size planets orbiting a sun-like star outside our solar system. The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in ...

NASA's Kepler space telescope launched in March 2009 to hunt for Earth-size alien planets that may be capable of supporting life as we know it. The $600 million mission's future is in doubt after the ...

We are blessed to live in an age of great discoveries. Prior to 1992, astronomers had not been able to identify with certainty any planet in orbit around a star outside of our solar system. But these ...

Astronomers using data from NASA's Kepler mission have discovered a tiny solar system consisting of a single red dwarf star, known as KOI-961 and three planets which are 0.78, 0.73 and 0.57 times the ...