Exoplanets, X-ray astronomy, and extragalactic outbursts were discussed at the meeting of the American Astronomical Society in Long Beach, California this week. Nearly 3,000 astronomers, educators and students and journalists attended some 2,000 sessions on outer world phenomena.
Topics at the American Astronomical Society Meeting

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The accelerating expansion of the galaxies observed by Hubble may conform more to Albert Einstein’s “cosmological constant” than a popular alternative theory of dark energy. (NASA; ESA)

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Researchers using the Stratospheric Observatory for Infrared Astronomy (SOFIA) have captured new images of a ring of gas and dust seven light-years in diameter surrounding the supermassive black hole at the center of the Milky Way. (NASA/SOFIA/FORCAST tea

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NASA's Spitzer and Hubble space telescopes have probed the atmosphere of a brown dwarf, creating the most detailed 'weather map' yet for this class of cool, star-like orbs. (NASA/JPL-Caltech)

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An artist’s conception of ice in a liquid hydrocarbon sea on Saturn's moon Titan. (NASA/JPL-Caltech/USGS)