NASA's Kepler Planetary Probe Powers Down to Unexplained Emergency Mode - NBCNews.com

NBCNews.com
NASA's Kepler Planetary Probe Powers Down to Unexplained Emergency Mode
NBCNews.com
NASA's planet-hunting Kepler probe suddenly went into hibernation-like emergency mode last week, and scientists don't know why. The $600 million space telescope technically finished its original mission in 2012, but because it was so successful ...
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