BORN AGAIN This year, Kepler engineers figured out how to stabilize the almost-defunct Kepler telescope, while astronomers found hundreds more worlds.
Wendy Stenzel/Kepler mission/NASA
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The Kepler space telescope is not quite dead. NASA’s planet-hunting space observatory got a second chance at life this year. And mission scientists analyzing already-collected data unearthed hundreds of new worlds, including a potentially habitable Earth-sized planet.