The most prolific planet-hunting machine in history is dead. NASA's Kepler space telescope, which has discovered 70 percent of the 3,800 confirmed alien worlds to date, has run out of fuel and signed off.
https://www.space.com/41363-kepler-exoplanet-hunting-telescope-dead.html
https://www.nasaspaceflight.com/2018/10/kepler-retired-after-running-out-of-fuel/
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