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The planet's discovery was announced on January 4, 2010 in Washington, D.C. alongside the other four planets that the Kepler spacecraft had confirmed by that point after being confirmed by telescopes at the W.M. Keck Observatory. - hmmm
Kepler-4 was, in turn, named for the Kepler Mission, a NASA satellite whose purpose is to discover Earth-like planets in a section of the sky between constellations Cygnus and Lyra using the transit method, where small and steady decreases in a star's brightness are measured as a planet crosses in front of it' - break apart
why are none of the refs to reviewed journal articles?
Comment Reference 6 is an article that has been submitted to ApJ, and references 7 and 8 are article that have been published in ApJ. The arxiv links are used because they are free to access by the public, whereas subscriptions are necessary to view them through the ApJ website. Nstock (talk) 18:06, 13 March 2011 (UTC)[reply]