From CNN...
NASA's Kepler space telescope has already made a discovery, and its
science operations aren't even officially under way yet.
NASA scientists who put the telescope through a 10-day test after its
March 6 launch said this week that Kepler is working well. Its ability
to detect minute changes in light has enabled scientists to determine
that a planet orbiting a distant star has an atmosphere, shows only
one side to its sun and is so hot it glows
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http://edition.cnn.com/2009/TECH/space/08/08/space.kepler.discovery/index.html?iref=werecommend