Astrophysical Journal

Spiral arms cradle baby terrestrial planets

New work from Carnegie's Alan Boss offers a potential solution to a longstanding problem in the prevailing theory of how rocky planets formed in our own Solar System, as well as in others. The snag he's untangling: how dust ...

dateJun 25, 2015 in Astronomy
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Accelerating universe? Not so fast

A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before; the findings have implications for ...

dateApr 10, 2015 in Astronomy
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Hubble catches a stellar exodus in action

Using NASA's Hubble Space Telescope, astronomers have captured for the first time snapshots of fledgling white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded center of an ancient star cluster ...

dateMay 14, 2015 in Astronomy
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