News From the Field
Clocking an Accelerating Universe: First Results From BOSS
March 30, 2012
BOSS, the Baryon Oscillation Spectroscopic Survey, is the largest component of the third Sloan Digital Sky Survey, with scientists from Lawrence Berkeley National Laboratory in principal leadership roles. First spectroscopic results from BOSS give the most detailed look yet at the time when dark energy turned on some 6 billion light years ago, as the expansion of the universe was slipping from the grasp of matter's mutual gravitational attraction, and expansion began to accelerate.
DOE/Lawrence Berkeley National Laboratory
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