Kepler (spacecraft) - Wikipedia, the free encyclopedia:
"Kepler is a space observatory launched by NASA to discover Earth-like planets orbiting other stars.[4] The spacecraft, named in honor of the 17th-century German astronomer Johannes Kepler,[5] was launched in March 2009[6] and has been active for 3 years, 6 months and 25 days as of today (2 October 2012) (time since launch).[6]"
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