gasdisk670

Illustration of a brown dwarf, spotted by NASA’s Spitzer Space Telescope, surrounded by a spinning protoplanetary disk. UC Berkeley researchers have developed a model that shows how vortices help destabilize the disk so that gas can spiral inward toward a forming star. (Image courtesy of NASA/JPL-Caltech)

Source: http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA07335

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