Thursday, February 17, 2011

Dark Energy Hunt Gets a New Tracker

A massive survey of distant galaxies should help unravel a mind-bending cosmic mystery: Why has the expansion of the universe sped up? The goal of the new project, called BigBOSS, is to develop a cosmic yardstick to accurately measure the universe's expansion, which seems to be getting a boost from an anti-gravity force known as dark energy. "It is a complete mystery what is going on with dark energy. It was completely unexpected," physicist Michael Levi with Lawrence Berkeley National Laboratory told Discovery News. More>