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BOSS Quasars Unveil a New Era in the Expansion History of the Universe

November 12, 2012

SDSS-BOSS illustration Using the "Lyman-alpha forests" of tens of thousands of quasar spectra, the third Sloan Digital Sky Survey's Baryon Oscillation Spectroscopic Survey (BOSS), led by Lawrence Berkeley National Laboratory, has measured the large-scale structure of the early universe for the first time. No other technique can reach back over 10 billion years to probe baryon oscillations at a time when the expansion of the universe was still decelerating and dark energy had yet to turn on. Full Story

DOE/Lawrence Berkeley National Laboratory

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) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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