Dec. 10, 2008 J.D. Harrington Headquarters, Washington 202-358-5241 j.d.harrington@xxxxxxxx Megan Watzke Chandra X-ray Center, Cambridge, Mass. 617-496-7998 mwatzke@xxxxxxxxxxxxxxx MEDIA ADVISORY: M08-249 NASA TO ANNOUNCE NEW FINDINGS ON DARK ENERGY WASHINGTON -- Astronomers will hold a media teleconference Tuesday, Dec. 16 at 1 p.m. EST to announce important new results on dark energy that were made using NASA's Chandra X-ray Observatory. The briefing participants are: -- Alexey Vikhlinin, astrophysicist, Smithsonian Astrophysical Observatory, Cambridge, Mass. -- William Forman, astrophysicist, Smithsonian Astrophysical Observatory -- David Spergel, theoretical astrophysicist, Princeton University To participate in the teleconference, reporters must contact the Chandra press office at 617-496-7998 or via e-mail at mwatzke@xxxxxxxxxxxxxxx before noon on Tuesday, Dec. 16, for dial-in information. A video file about the discovery will air on NASA Television on Dec. 16. The teleconference audio will be streamed live on the Web at: http://www.nasa.gov/newsaudio For information about NASA and agency programs, visit: http://www.nasa.gov -end- To subscribe to the list, send a message to: hqnews-subscribe@xxxxxxxxxxxxxxxxxxxxxx To remove your address from the list, send a message to: hqnews-unsubscribe@xxxxxxxxxxxxxxxxxxxxxx