May 2, 2007 Grey Hautaluoma Headquarters, Washington 202-358-0668 Megan Watzke Chandra X-ray Center, Cambridge, Mass. 617-496-7998 MEDIA ADVISORY: M07-46 NASA TO ANNOUNCE EXTRAORDINARY STELLAR DISCOVERY WASHINGTON - At a NASA Science Update Monday, May 7, at 2 p.m. EDT, astronomers will announce new findings about a record-breaking stellar event discovered using NASA's Chandra X-ray Observatory. The event will be held in the auditorium at NASA Headquarters, 300 E St., S.W., in Washington and will be broadcast live on NASA Television and streamed at http://www.nasa.gov. Media at participating NASA centers will have the opportunity to ask questions. The Chandra X-ray Observatory is the world's most powerful X-ray telescope. Chandra is designed to observe X-rays from high-energy regions of the universe, such as the remnants of exploded stars. Along with the Hubble Space Telescope, the Spitzer Space Telescope, and the now de-orbited Compton Gamma Ray Observatory, Chandra is one of NASA's "Great Observatories." The Smithsonian Astrophysical Observatory in Cambridge, Mass., is responsible for the day-to-day ?ight operations and science activities for Chandra from the Operations Control Center and Chandra X-ray Center facilities. For more information about NASA TV, streaming video, downlink and schedule information, visit: http://www.nasa.gov/ntv For more information about the Chandra X-ray Observatory, visit: http://www.nasa.gov/chandra -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