NASA Images Suggest Water Still Flows on Mars |
NASA Images Suggest Water Still Flows on Mars |
Guest_Sunspot_* |
Dec 4 2006, 09:25 PM
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#101
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Guests |
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. |
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Dec 7 2006, 03:00 PM
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#102
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Member Group: Members Posts: 242 Joined: 17-February 04 From: Ohio, USA Member No.: 34 |
I just read Emily's article (the one that Alex cited above) and I have to say that it's raised some questions in my mind. The evidence cited for the white streaks as being from flowing water were: the light color, the fact that they moved around obstacles and the digitate nature of their terminus. Yet if you look at the image of the dark flows, which are considered to be dry dust flows, you can see two of the same features: a digitate terminus and flow around an obstacle. That leaves only the white color as distiguishing them from the dark, dust streaks. Perhaps the light streaks are just a different type of dry flow (we have seen white dust churned up by Spirit) or perhaps the dark streaks are a different type of aqueous flow.
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Dec 7 2006, 03:12 PM
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#103
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Mike Malin addressed that as well. The slopes where these deposits are made are fairly gentle, a dry process would have trouble making it that far - was it 1 mile or so? They did computer simulations showing it's most plausible to be a liquid-driven process, liquids flow much more easily than dry stuff.
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