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Latest American Astronomical Society in Washington Stories

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2010-01-07 12:05:00

New simulation presented at astronomy meeting reveals planet migration prevents plunge into sun For the last 20 years, the best models of planet formation"”or how planets grow from dust in a gas disk"”have contradicted the very existence of Earth. These models assumed locally constant temperatures within a disk, and the planets plunge into the Sun. Now, new simulations from researchers at the American Museum of Natural History and the University of Cambridge show that variations...

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2010-01-05 10:35:00

NASA's Hubble Space Telescope has broken the distance limit for galaxies and uncovered a primordial population of compact and ultra-blue galaxies that have never been seen before. The deeper Hubble looks into space, the farther back in time it looks, because light takes billions of years to cross the observable universe. This makes Hubble a powerful "time machine" that allows astronomers to see galaxies as they were 13 billion years ago, just 600 million to 800 million years after the Big...