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Space telescopes

Kepler & K2 Science Center

NASA's Kepler Space Telescope, which launched in 2009, was officially retired in October 2018 after running out of fuel. Over its career, the telescope discovered 2,650 exoplanets and provided huge amounts of data that scientists are still exploring. Here, NASA provides a wealth of information intended primarily for researchers, though space enthusiasts may also find it of interest. The homepage...