NASA Images Suggest Water Still Flows on Mars Options

[Guest_Sunspot_*]

Dec. 4, 2006

Dwayne Brown/Erica Hupp
Headquarters, Washington
202-358-1726/1237

Guy Webster
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-6278

MEDIA ADVISORY: M06-186

NASA SCHEDULES BRIEFING TO ANNOUNCE SIGNIFICANT FIND ON MARS

WASHINGTON - NASA hosts a news briefing at 1 p.m. EST, Wednesday, Dec.
6, to present new science results from the Mars Global Surveyor. The
briefing will take place in the NASA Headquarters auditorium located
at 300 E Street, S.W. in Washington and carried live on NASA
Television and www.nasa.gov.

The agency last week announced the spacecraft's mission may be at its
end. Mars Global Surveyor has served the longest and been the most
productive of any spacecraft ever sent to the red planet. Data
gathered from the mission will continue to be analyzed by scientists.


Panelists include:
- Michael Meyer -- Lead Scientist, Mars Exploration Program, NASA
Headquarters, Washington
- Michael Malin -- President and Chief Scientist, Malin Space Science
Systems, San Diego, Calif.
- Kenneth Edgett -- Scientist, Malin Space Science Systems
- Philip Christensen -- Professor, Arizona State University, Tempe,
Ariz.

[Anoolios]

This amateur is still skeptical, is the only evidence of water in these gullies the relative albedo (light instead of dark like most other dust/sand deposits)? The most likely explaination seems to me to be dry avalanches.

[Guest_AlexBlackwell_*]

This amateur is still skeptical, is the only evidence of water in these gullies the relative albedo (light instead of dark like most other dust/sand deposits)? The most likely explaination seems to me to be dry avalanches.

It's always good to be skeptical, Anoolios. That is a hallmark of good science.

As for your question, have you seen this page? Note that Malin et al. don't rely just on albedo, though that is a key piece of evidence.