Support WBURAfter 9 Years In Orbit, Kepler Telescope Leaves A Legacy Of DiscoveryPlay03:01Download AudioLulu Garcia-NavarroHenry ZimmermanNovember 04, 2018 ShareAfter 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)