NASA said its orbiting Kepler telescope has spotted two planets the size of Earth orbiting another star, although both are far too hot to sustain life. The discovery does, however, bring scientists a ...

NASA's elite planet-hunting spacecraft has been declared dead, just a few months shy of its 10th anniversary. Officials announced the Kepler Space Telescope's demise Tuesday. Already well past its ...

The most prolific planet-hunting machine in history has signed off. NASA's Kepler space telescope, which has discovered 70 percent of the 3,800 confirmed alien worlds to date, has run out of fuel, ...

Scientists continue to mine data gathered by NASA's Kepler Space Telescope, retired in 2018, and continue to turn up surprises. A new paper reveals the latest: a possible rocky planet slightly larger ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

By refusing to look away, a space telescope discovered that planets are commonplace, not rare exceptions to the cosmic rule.

On March 7, 2009, the Kepler Space Telescope took off from Cape Canaveral aboard a Delta II rocket. For almost a decade, the space telescope expanded our understanding of the universe before it ...

Kepler’s endurance in overcoming several failures is also evidence of the excellent technology that went into producing the remarkable space telescope. Kepler was launched in March 2009, tasked with ...