AdvertisementAfter 9 Years In Orbit, Kepler Telescope Leaves A Legacy Of DiscoveryNovember 04, 2018Lulu Garcia-NavarroHenry ZimmermanfacebookEmailAfter nine years in deep space collecting data that indicates our sky is filled with billions of hidden planets, NASA's Kepler Space Telescope has run out of fuel. On Oct. 30, 2018, NASA announced the retirement of the spacecraft. (Getty Images)
