ScienceDaily: Cosmic Rays News |
| Universe measured to one-percent accuracy: Most precise calibration yet of cosmic 'standard ruler' Posted: 08 Jan 2014 12:44 PM PST The Baryon Oscillation Spectroscopic Survey (BOSS) is the largest component of the third Sloan Digital Sky Survey. BOSS has measured the clustering of nearly 1.3 million galaxies spectroscopically, determining the "standard ruler" of the universe's large-scale structure to within one percent. This is the most precise such measurement ever made and likely to be the standard for years to come. |
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