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Solar system's youth gives clues to planet search
Comets and meteorites contain clues to our solar system's earliest days. But some of the findings are puzzle pieces that don't seem to fit well together. A new set of theoretical models from Carnegi ... more
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The limits to galactic growth
Astronomers have long assumed that when a galaxy produces too many stars too quickly, it greatly reduces its capacity for producing stars in the future. Now, a group of astronomers that includes Fab ... more
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NASA's Wise Finds Mysterious Centaurs May Be Comets
The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of ... more
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Bad night's sleep? The moon could be to blame
Many people complain about poor sleep around the full moon, and now a report appearing in Current Biology, a Cell Press publication, offers some of the first convincing scientific evidence to sugges ... more
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