NASA will hold a media teleconference at 1 p.m. EST, Tuesday, Nov. 21, to discuss the status and science accomplishments of the Mars Global Surveyor. The 10-year old spacecraft is the oldest of five NASA spacecraft currently active at the red planet.

Reporters must call the NASA Jet Propulsion Laboratory, Pasadena, Calif., media relations office at 818-354-5011 for participation information. Images supporting the briefing will be posted online at the start of the briefing at: http://www.nasa.gov/mission_pages/mgs/20061121.html

Briefing participants: --Michael Meyer, Lead Scientist, Mars Explorations Program, NASA

Headquarters

--Fuk Li, Mars Program Manager, Jet Propulsion Laboratory (JPL), Pasadena, Calif.

Supporting participants:

--Tom Thorpe, Project Manager, Mars Global Surveyor, JPL, Pasadena, Calif.

-- Phil Christensen, Principal Investigator, Thermal Emission Spectrometer, Arizona State Univ, Tempe

-- Michael Malin, Principal Investigator, Mars Orbiter Camera, Malin Space Science Systems, San Diego

Audio of the event will be available on the Internet at: http://www.nasa.gov/newsaudio

For NASA TV streaming video, schedule and downlink information, visit: http://www.nasa.gov/ntv

For more information about Mars Global Surveyor visit: http://marsprogram.jpl.nasa.gov/mgs/