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News From the Field
Where do stars end and brown dwarfs begin?

December 9, 2013

the point where stars end and brown dwarfs begin Stars come in a tremendous size range, from many tens of times bigger than the Sun to a tiny fraction of its size.  Objects that are smaller than stars and unable to ignite and sustain hydrogen fusion in their cores are referred to as brown dwarfs, but differentiating the two hasn't been easy. Now, researchers have found clear observational evidence for the theoretically predicted break between very low mass stars and brown dwarfs. Full Story

National Optical Astronomy Observatory

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2015, its budget is $7.3 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives about 48,000 competitive proposals for funding, and makes about 11,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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