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NASA will hold a media teleconference Tuesday, Sept. 23, at 12:30 p.m. EDT, to discuss data from the joint NASA and European Space Agency Ulysses mission that reveals the sun's solar wind is at a 50-year low. The sun's current state could result in changing conditions in the solar system. Ulysses was the first mission to survey the space environment above and below the poles of the sun. The reams of data Ulysses returned have changed forever the way scientists view our star and its effects. The venerable spacecraft has lasted more than 17 years - almost four times its expected mission lifetime. The panelists are: -- Ed Smith, NASA Ulysses project scientist and magnetic field instrument investigator, Jet Propulsion Laboratory, Pasadena, Calif. -- Dave McComas, Ulysses solar wind instrument principal investigator, Southwest Research Institute, San Antonio -- Karine Issautier, Ulysses radio wave lead investigator, Observatoire de Paris, Meudon, France -- Nancy Crooker, Research Professor, Boston University, Boston, Mass. 

To access visuals that will the accompany presentations, go to:  http://www.nasa.gov/topics/solarsystem/features/ulysses20080923.html

Audio of the teleconference will be streamed live at:

 http://www.nasa.gov/newsaudio