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MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011
http://www.jpl.nasa.gov 

DC Agle  818/393-9011
Jet Propulsion Laboratory, Pasadena, Calif.                      
April 10, 2003

NEWS RELEASE: 2003-050

Mars Mysteries Revealed in Two Public Lectures

Two free public programs in Pasadena next week offer an overview of
the historic Mars Global Surveyor mission.

Dr. Terry Martin, planetary scientist and member of the Mars Global
Surveyor science team, will discuss and display imagery, charts and
scientific findings as he chronicles the adventures of the one
spacecraft that has returned more data about Mars than all other
missions combined. The first lecture will be held on Thursday
evening, April 17, at NASA's Jet Propulsion Laboratory, and the
second on Friday evening, April 18, at Pasadena City College.

Mars Global Surveyor has been orbiting the red planet since Sept. 12,
1997.  The mission has examined the entire martian surface and
provided a wealth of information about the planet's atmosphere and
interior. Evaluation of landing sites for two Mars Exploration
Rovers, due to launch in the next three months, has relied heavily on
mineral mapping, detailed imagery and topographic measurements made
by Global Surveyor.

"There are at least five kinds of new global maps of Mars in hand
now, thanks to Global Surveyor," said Martin. "We are finding places
on the planet both fascinating and beautiful."

Both lectures begin at 7 p.m. Seating is on a first-come,
first-served basis. The lecture at JPL, located at 4800 Oak Grove
Drive, Pasadena, off the Oak Grove Drive exit of the 210 (Foothill)
Freeway, will be held in the von Karman Auditorium. The Friday
lecture will be in Pasadena City College's Vosloh Forum, 1570 E.
Colorado Blvd. For more information, call 354-0112.

The lecture at JPL will be webcast live and available for later
viewing at

http://www.jpl.nasa.gov/events/lectures/apr03.html  .

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