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Starless cloud cores reveal why some stars are bigger than others


December 20, 2013

ALMA data overlaid on an artistic background Massive stars--those at least eight times the mass of the sun--present an intriguing mystery: How do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? To find the answer, astronomers used the Atacama Large Millimeter/submillimeter Array telescope to look inside the cores of some of the darkest, coldest and densest clouds in the galaxy. What they found could explain starless cloud formation. Full Story

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National Radio Astronomy Observatory

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