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Orbiting high over the lunar surface is LADEE, the Lunar Atmosphere and Dust Environment Explorer, with a mission to probe the moon’s exosphere and dust clouds. It will take readings using a number of spectrometers and specialized equipment, piling up stores of data as quickly as it can manage. In just 100 days of primary operation, it will compile enough ...

Over the past year, we’ve told the sad story of NASA’s Kepler space observatory, and how the failure of two vital components have resulted in the sad and premature retirement of humanity’s best tool for spotting Earth-like planets elsewhere in the universe. Just when all hope seemed lost, though, NASA has approved an ingenious plan to bring Kepler back online ...