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NASA Images Suggest Water Still Flows on Mars
ustrax
post Dec 6 2006, 05:57 PM
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"MARS
Recent Activity Revealed"

That's the header... smile.gif


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Guest_AlexBlackwell_*
post Dec 6 2006, 05:57 PM
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QUOTE (elakdawalla @ Dec 6 2006, 07:55 AM) *
It's typically more efficient for me to wait until you post a link here, Alex biggrin.gif

Your wish is my command. biggrin.gif MSSS link.

EDIT: And I believe the paper will be published in the December 8, 2006, issue of Science.

This post has been edited by AlexBlackwell: Dec 6 2006, 06:00 PM
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ElkGroveDan
post Dec 6 2006, 06:12 PM
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We now have a new unit of measure; Swimming Pools.


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remcook
post Dec 6 2006, 06:15 PM
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very nice summaries on the msss page. Something else to look at with more detail with HiRISE perhaps? smile.gif

edit-downloads on: http://www.nasa.gov/mission_pages/mars/main/index.html
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tuvas
post Dec 6 2006, 06:23 PM
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QUOTE (remcook @ Dec 6 2006, 11:15 AM) *
very nice summaries on the msss page. Something else to look at with more detail with HiRISE perhaps? smile.gif

edit-downloads on: http://www.nasa.gov/mission_pages/mars/main/index.html


I'd be willing to bet that it's far more likely to have CRISM follow up then HiRISE, although HiRISE will almost certainly photograph these areas quite soon (I have no idea when, so...)
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Guest_Analyst_*
post Dec 6 2006, 07:09 PM
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A very good press confernce, good questions.

I have been a child during the Voyager encounters, but the discovery of frequent liquid water on mars is something I compare to volcanism on Io or gryovulcanism on Triton. Just great. The legacy of MGS continues. May she rest (or circle) in peace.

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volcanopele
post Dec 6 2006, 07:15 PM
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QUOTE (Analyst @ Dec 6 2006, 12:09 PM) *
frequent liquid water on mars is something I compare to volcanism on Io or gryovulcanism on Triton. Just great. The legacy of MGS continues. May she rest (or circle) in peace.

I wouldn't go THAT far. It is interesting, but the news that Mars gets hit by impact craters, and that gullies are present-day phenomena (given the crater counts on previously observed gullies) isn't that shocking. Interesting, but not shocking. I would put it on the level of the discovery of lakes on Titan, a discovery which just confirmed that we were at least on the right track with Titan.


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centsworth_II
post Dec 6 2006, 07:16 PM
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QUOTE (Analyst @ Dec 6 2006, 02:09 PM) *
... the discovery of frequent liquid water on mars...

You mean recent, not frequent, right?
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um3k
post Dec 6 2006, 07:18 PM
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I recorded the NASA TV internet stream of the entire conference. I'll upload it somewhere once I convert it to an appropriate format.
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SteveM
post Dec 6 2006, 07:21 PM
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QUOTE (tuvas @ Dec 6 2006, 01:23 PM) *
I'd be willing to bet that it's far more likely to have CRISM follow up then HiRISE, although HiRISE will almost certainly photograph these areas quite soon (I have no idea when, so...)
I'd be willing to bet that when CRISM focuses on these gullies they'll find salts of some kind. I'd even put a smaller wager on sulphate salts. As Steve Squyres mentioned in response to a question at Open University, the "water" on mars is acidic and inhospitable to life. That suggests that this AP article may be premature.
QUOTE (Stu @ Dec 6 2006, 12:16 PM) *
Martian find raises chances of life
ALICIA CHANG
ASSOCIATED PRESS
December 6, 2006
...
"This underscores the importance of searching for life on Mars, either present or past," said Bruce Jakosky, an astrobiologist at the University of Colorado at Boulder, who had no role in the study. "It's one more reason to think that life could be there.''
...


Steve
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volcanopele
post Dec 6 2006, 07:29 PM
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QUOTE (Steve @ Dec 6 2006, 12:21 PM) *
I'd be willing to bet that when CRISM focuses on these gullies they'll find salts of some kind. I'd even put a smaller wager on sulphate salts. As Steve Squyres mentioned in response to a question at Open University, the "water" on mars is acidic and inhospitable to life. That suggests that this AP article may be premature.
Steve

I agree. I would not be surprised if the bright deposits are some kind of sulphate salt.


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Guest_AlexBlackwell_*
post Dec 6 2006, 07:39 PM
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NASA Images Suggest Water Still Flows in Brief Spurts on Mars
NASA/JPL
December 6, 2006

Note: I'm going to change the name of this thread to the title above (or something close to it, depending on the space in the topic line).

This post has been edited by AlexBlackwell: Dec 6 2006, 07:41 PM
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Guest_AlexBlackwell_*
post Dec 6 2006, 07:42 PM
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QUOTE (volcanopele @ Dec 6 2006, 09:29 AM) *
I agree. I would not be surprised if the bright deposits are some kind of sulphate salt.

Aside from HiRISE and CRISM, Malin mentioned SHARAD. I'm interested to see if the putative aquifers are detectable by GPR.
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vmcgregor
post Dec 6 2006, 07:53 PM
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tglotch
post Dec 6 2006, 07:56 PM
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QUOTE (Steve @ Dec 6 2006, 07:21 PM) *
I'd be willing to bet that when CRISM focuses on these gullies they'll find salts of some kind. I'd even put a smaller wager on sulphate salts. As Steve Squyres mentioned in response to a question at Open University, the "water" on mars is acidic and inhospitable to life. That suggests that this AP article may be premature.
Steve


Well, we have evidence from two landing sites for acidic water in the form of sulfates. But don't forget that OMEGA has found plenty of evidence for gypsum and kieserite all over Mars, which are neutral salts and don't necessarily imply an acidic envrionment.
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