Donald Savage
Headquarters, Washington, DC                    June 21, 2000
(Phone:  202/358-1727)

Mary Hardin
Jet Propulsion Laboratory, Pasadena, CA 
(Phone:  818/354-0344)

NOTE TO EDITORS:  N00-26

NASA PRESS CONFERENCE TOMORROW TO DISCUSS NEW IMAGES 
SUGGESTING PRESENT-DAY SOURCES OF LIQUID WATER ON MARS

     NASA will hold a press conference tomorrow, Thursday, June 
22, at 11 a.m. EDT, to discuss the recent discovery of evidence of 
liquid water on Mars using NASA's Mars Global Surveyor spacecraft, 
with a paper to be published in the June 30 issue of Science 
magazine.  Because some press reports over the past two days on 
the subject have been incorrect in significant areas, NASA has 
arranged to hold the press conference earlier than originally 
planned so that the Principal Investigators, Drs. Michael Malin 
and Ken Edgett, can discuss their findings in person.  Also, 
Science Magazine will release the paper at 10 a.m. EDT tomorrow in 
advance of the press conference.  The briefing will be held at the 
James E. Webb Auditorium at NASA Headquarters, 300 E St., SW, 
Washington, DC.

     Panelists will be:
*     Dr. Ed Weiler, Associate Administrator, Office of Space 
Science, NASA Headquarters, 
      Washington, DC
*     Dr. Michael Malin, principal investigator for the Mars 
Orbiter Camera on the Mars Global 
     Surveyor spacecraft, Malin Space Science Systems (MSSS), San 
Diego, CA
*    Dr. Ken Edgett, staff scientist at MSSS and co-author of the 
paper in Science
*    Dr. Mike Carr, Planetary Geologist, U.S. Geological Survey, 
Menlo Park, CA
*    Dr. Bruce Jakosky, Director, Center for Astrobiology, 
University of Colorado, Boulder
*    Dr. Jim Garvin, Mars Program Scientist, NASA Headquarters, 
Washington, DC

     NASA Television is broadcast on GE-2, transponder 9C located 
at 85 degrees West longitude, with vertical polarization.  
Frequency is on 3880.0 MHz, with audio on 6.8 MHz.

     Reporters also can listen to the press conference by calling:  
321/867-1220,  321/867-1240,  321/867-1260,  321/867-7135,  
321/867-4920,  321/867-4003.

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