This NASA page provides a description of the Kepler and K2 NASA missions, which included searches for extrasolar planets. Text describes how these planets are detected, the mission objectives, and how Kepler works. The site also provides information about Kepler's second mission: K2.
NASA Ames Research Center. Kepler and K2 Mission. Moffett Field: NASA Ames Research Center, October 30, 2018. https://www.nasa.gov/mission_pages/kepler/overview/index.html (accessed 27 September 2021).
%0 Electronic Source %D October 30, 2018 %T Kepler and K2 Mission %I NASA Ames Research Center %V 2021 %N 27 September 2021 %8 October 30, 2018 %9 text/html %U https://www.nasa.gov/mission_pages/kepler/overview/index.html
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