![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/12/YE_13.jpg?fit=860%2C460&ssl=1)
THE END The Kepler space telescope closed out a brilliant career this year.
NASA/Kepler mission; Starry background: Imageman/Shutterstock
THE END The Kepler space telescope closed out a brilliant career this year.
NASA/Kepler mission; Starry background: Imageman/Shutterstock