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måndag, juli 29, 2013

Starburst wind keeps galaxies thin


College Park MD (SPX) Jul 29, 2013 - Unlike humans, galaxies don't have an obesity problem. In fact there are far fewer galaxies at the most massive end of the galactic scale than expected and scientists have long sought to explain why. A new, UMD-led study published in the journal Nature suggests that one answer lies in a kind of feast and fast sequence through which large galaxies can keep their mass down. 
More: http://www.spacedaily.com/



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