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News Release 193 of 958

August 19, 2010 02:00 PM (EDT)

News Release Number: STScI-2010-26

First Use of Cosmic Lens to Probe Dark Energy

August 19, 2010: An international team of astronomers using NASA's Hubble Space Telescope has devised a new method for measuring perhaps the greatest puzzle of our universe — dark energy. This mysterious phenomenon, discovered in 1998, is pushing our universe apart at ever-increasing speeds. The team's results appear in the August 20, 2010 issue of the journal Science.

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Credit: NASA, ESA, E. Jullo (Jet Propulsion Laboratory), P. Natarajan (Yale University), and J.-P. Kneib (Laboratoire d'Astrophysique de Marseille, CNRS, France)