Dark Energy

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November 25, 2013
In scientific circles, “mock” is not always a four-letter word. To test that they’re interpreting their massive amounts of data correctly, astrophysicists create even more data: “mock” data. And while that may be counterintuitive at first, it actually makes a surprising amount of sense.
September 3, 2013
News Feature
Word of the official beginning of the Dark Energy Survey (DES) starts a five-year clock on a meticulous mapping of one-eighth of the night sky by the Dark Energy Camera, mounted on the Victor M. Blanco Telescope at the Cerro Tololo Inter-American Observatory.
Photo - From left: Eduardo Rozo, Risa Wechsler and El...
August 22, 2013
News Feature
On June 11, 2008, what was then the Gamma-ray Large Area Space Telescope rode a Delta II rocket into low-Earth orbit. After two months of tests and checks and calibrations, on August 11, 2008, NASA declared GLAST open for business as astrophysics' premier eye on the gamma-ray sky. Five years, a name change, a near miss with a defunct Soviet spy satellite, and countless surprises later, the spacecraft now known as the Fermi Gamma-ray Space Telescope is still going strong, with another five-year mission stretching ahead of it.
Photo - The Fermi Gamma-ray Space Telescope launches June 11, 2008
April 24, 2012
Press Release
Menlo Park, Calif. — A 3.2 billion-pixel digital camera designed by SLAC National Accelerator Laboratory is now one step closer to reality.