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Feature of Earth's atmosphere may help in search for habitable planets
An atmospheric peculiarity on Earth is likely common to billions of planets, a finding that may help identify potentially habitable worlds, U.S. scientists say. ... more
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Minerals in giant impact crater may be clues to moon's makeup, origin
Mineralogical discoveries in the moon's largest impact crater could yield clues to the evolution of our companion's crust and mantle, U.S. researchers say. ... more
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Meteor rattles houses, brightens sky over Tucson
A loud boom and a bright streak in the sky over Tucson, Ariz., Tuesday evening may have been a preview of the year's largest meteor shower, astronomers said. ... more
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'Wake up' competition for Europe's sleepy comet-chaser
Citizens of Planet Earth are being invited to make a "video shout-out" to wake up a deep-space probe, Rosetta, that has been in hibernation since June 2011. ... more
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