universe measured to one-percent accuracy: Survey makes most precise calibration yet of the universe's 'standard ruler'
Wednesday, January 8, 2014 - 16:10
in Astronomy & Space
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.