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List of evidence for water on Mars
pumpkinpie
post Feb 5 2013, 04:59 PM
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Does there exist a list of all the evidence of water on Mars, listed by spacecraft?

Ideally, it would be a list with a short description and a link to a story or news release. For example:

Mars Global Surveyor: NASA Images Suggest Water Still Flows in Brief Spurts on Mars http://www.nasa.gov/mission_pages/mars/new...s-20061206.html
Phoenix: NASA Spacecraft Confirms Martian Water, Mission Extended http://www.nasa.gov/mission_pages/phoenix/...x-20080731.html
Opportunity: NASA Mars Rover Finds Mineral Vein Deposited by Water http://www.nasa.gov/mission_pages/mer/news/mer20111207.html

I know I could spend some time and extend the list that I've started above, but if someone or some organization has already done it I'd hate to reinvent the wheel!

Thank you.
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pumpkinpie
post Feb 5 2013, 06:10 PM
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Thanks for the reply!

I think I should have been a little more specific in my post. Sometimes I forget that people can't read everything I think about when I am typing. laugh.gif

I work in a planetarium, so I do shows on Mars for the public and for schools. I would love to have just a highlights list--what scientists and/or NASA E/PO think are the (for example) 10, 20, 50 "best" discoveries of evidence of water on Mars. Every month it seems there is a new release saying "best evidence yet!" so that makes me think, ok, what was the last "best evidence yet!" and the one before, and the one before, etc.

I would use it a number of ways. For my own background information, so I am ready to answer the question from a student or general public "how do we know there is/was water there?" in 30 seconds or less. That applies for my student employees, too. They wouldn't have the same time to dedicate to learning about this topic as I do, so I would want to give them a simple list. It would also be great to include in handouts I give to teachers.

I may be asking a lot, with the only answer being "do it yourself and use your best judgement." smile.gif
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JRehling
post Feb 6 2013, 06:15 PM
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There are a few different parts of the answer, broken down by ice/liquid/vapor, and past/present. And past includes many past eras.

Phoenix took a photo of the ice like a hockey rink in the polar subsurface, so that's about as direct evidence as you could ask for regarding the ice/present combination. That was no great surprise after Mars Odyssey showed the extent of subsurface ice by detecting where neutrons were absorbed by hydrogen (which is a component of virtually no other mineral than water ice).

Pointers to other key evidence are:

MGS and MRO: Orbital observation of gullies formed in the present.

MRO: Orbital detection of minerals that are likely formed only in water.

Opportunity: In situ detection of minerals and geomorphology that indicates standing (acidic) water.

This is far from exhaustive, but if you only have 30 seconds, you can only say so much.
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Posts in this topic
- pumpkinpie   List of evidence for water on Mars   Feb 5 2013, 04:59 PM
- - elakdawalla   It would be a long list. Don't look for press ...   Feb 5 2013, 05:09 PM
- - pumpkinpie   Thanks for the reply! I think I should have ...   Feb 5 2013, 06:10 PM
|- - JRehling   There are a few different parts of the answer, bro...   Feb 6 2013, 06:15 PM
|- - pumpkinpie   Simple, but very helpful! Thanks!   Feb 6 2013, 07:57 PM
|- - mcaplinger   QUOTE (JRehling @ Feb 6 2013, 11:15 AM) T...   Feb 6 2013, 08:01 PM
|- - mwolff   QUOTE (mcaplinger @ Feb 6 2013, 02:01 PM)...   Feb 8 2013, 03:36 PM
|- - JRehling   On a meta-level, I recall that Earth-based spectro...   Feb 8 2013, 07:56 PM
|- - mcaplinger   QUOTE (JRehling @ Feb 8 2013, 12:56 PM) ....   Feb 8 2013, 08:35 PM
|- - mwolff   QUOTE (JRehling @ Feb 8 2013, 01:56 PM) O...   Feb 10 2013, 03:28 PM
|- - JRehling   Speaking just to the spectroscopic detection of H2...   Feb 12 2013, 12:17 AM
- - elakdawalla   This sounds like a pitch for a magazine article. I...   Feb 5 2013, 06:36 PM
- - nprev   IIRC, they did the same around the same time for t...   Feb 6 2013, 10:58 PM
- - ElkGroveDan   ADMIN HAT ON Let's be clear here everyone bef...   Feb 10 2013, 05:01 PM
- - belleraphon1   There was a conference earlier this month at UCLA ...   Feb 28 2013, 11:55 AM
- - marsbug   Pardon the thread necromancy, but this seems like ...   Jul 3 2014, 11:12 PM
- - serpens   Not even mildly damp. With 1 to 2% of perchlorate...   Jul 4 2014, 07:52 AM
- - marsbug   There's certainly nothing to forgive, I think ...   Jul 4 2014, 04:19 PM
- - TheAnt   Studies done at Niels Bohr institute in Copenhagen...   Apr 9 2015, 11:43 AM
- - marsbug   This makes me wonder: If ice, at a lattitude and a...   Apr 9 2015, 04:21 PM
|- - TheAnt   On Earth you will often find water under a glacier...   Apr 10 2015, 09:09 AM
- - serpens   A glacier is by definition dynamic. So are they c...   Apr 12 2015, 12:41 AM
|- - TheAnt   QUOTE (serpens @ Apr 12 2015, 02:41 AM) I...   Apr 17 2015, 10:36 AM
|- - katodomo   QUOTE (TheAnt @ Apr 17 2015, 12:36 PM) Gl...   Apr 17 2015, 07:08 PM
- - Fran Ontanaya   "Transient liquid water and water activity at...   Apr 13 2015, 07:26 PM
|- - katodomo   EGU 2015 Press Conference 5: "Water Signature...   Apr 14 2015, 01:32 PM
- - scalbers   Will Monday's announcement be about further wa...   Sep 26 2015, 06:10 PM
|- - dolphin   Rumor suggests a discovery of flowing water. I wou...   Sep 27 2015, 06:03 AM
- - nprev   If that has any validity it would probably be a re...   Sep 27 2015, 06:39 AM
|- - dolphin   QUOTE (nprev @ Sep 27 2015, 06:39 AM) If ...   Sep 27 2015, 08:16 AM
- - drz1111   Just like the Atacama. Cool that it happens at th...   Sep 28 2015, 03:15 PM
- - dudley   Clear evidence of liquid water on Mars' surfac...   Sep 28 2015, 05:38 PM
- - scalbers   The lowered melting point in the presence of perch...   Sep 28 2015, 06:00 PM
|- - JRehling   Some rather acrobatic surface missions that we mig...   Sep 28 2015, 06:12 PM
|- - Gsnorgathon   A loooong time ago I saw an item somewhere on the ...   Sep 28 2015, 06:48 PM
|- - stevesliva   QUOTE (Gsnorgathon @ Sep 28 2015, 01:48 P...   Sep 28 2015, 08:50 PM
- - dudley   There seems to be a good deal of concern that visi...   Sep 28 2015, 07:19 PM
- - marsophile   In this morning's press conference on Recurren...   Sep 28 2015, 07:39 PM
- - ElkGroveDan   QUOTE Ojha first noticed these puzzling features a...   Sep 28 2015, 08:06 PM
- - Steve G   Will someone please correct me if I am wrong. Eit...   Sep 28 2015, 08:17 PM
- - elakdawalla   MGS found slope streaks; recurring slope lineae ar...   Sep 28 2015, 08:18 PM
- - gpurcell   Seems to me a reasonably priced approach could be ...   Sep 28 2015, 09:31 PM
- - atomoid   I was also confused about the RSL vs 'slope st...   Sep 28 2015, 10:19 PM
- - dolphin   Am I missing something? Why would briny perchlorat...   Sep 28 2015, 10:22 PM
- - brellis   One of the blurbs alluded to the possibility of an...   Sep 28 2015, 10:36 PM
|- - JRehling   My sense is: The subsurface ice layer (as seen un...   Sep 28 2015, 11:43 PM
- - serpens   I have to admit to being a touch underwhelmed by t...   Sep 29 2015, 02:45 AM
- - pac56   I think the news is they did spectral analysis of ...   Sep 29 2015, 06:17 AM
- - marsbug   I'd point towards Emily's blog as well. WR...   Sep 29 2015, 08:59 AM
- - dvandorn   It seems to me that the confirmation of liquid wat...   Sep 29 2015, 03:15 PM
|- - surbiton   QUOTE (dvandorn @ Sep 29 2015, 04:15 PM) ...   Sep 29 2015, 04:11 PM
|- - JRehling   QUOTE (dvandorn @ Sep 29 2015, 08:15 AM) ...   Sep 29 2015, 04:36 PM
- - marsophile   http://www.hou.usra.edu/meetings/lpsc2015/pdf/2327...   Sep 30 2015, 02:51 AM
- - Explorer1   The fact that these features are spread out over s...   Sep 30 2015, 03:50 AM
|- - JRehling   I think there are lots of ways to study/sample the...   Sep 30 2015, 05:00 PM
- - serpens   JRehling's post #47 proposing the water source...   Oct 1 2015, 04:45 AM
- - Explorer1   'Fluidizing agent found on Mars' doesn...   Oct 1 2015, 04:51 AM
- - serpens   This makes for rather interesting reading. http...   May 20 2016, 08:14 AM
- - marsbug   The question marks around the RSL's are growin...   Aug 24 2016, 11:38 AM
- - serpens   Well Spirit at Tyrone demonstrated that a thin lay...   Aug 27 2016, 03:14 AM
- - Julius   A study published discussing inverted river channe...   Aug 29 2016, 08:12 PM
- - serpens   The linked Planetary Society blog article provides...   May 9 2019, 12:48 AM
|- - HSchirmer   QUOTE (serpens @ May 9 2019, 01:48 AM) Th...   Jun 19 2019, 05:05 PM
- - marsbug   I don't know if this has been mentioned before...   Feb 21 2020, 05:56 PM
|- - serpens   Here is the complete abstract from the LPSC 2020 M...   Feb 24 2020, 06:35 AM
|- - HSchirmer   QUOTE (marsbug @ Feb 21 2020, 05:56 PM) I...   Feb 24 2020, 02:17 PM
- - atomoid   You're right we don't hear much on this an...   Feb 25 2020, 09:49 PM
- - marsbug   Just generally, from my physics background, layman...   Feb 27 2020, 02:11 PM
- - Marz   I'm sharing this LPSC abstract because it is q...   Mar 16 2021, 11:26 PM
- - marsbug   My apologies for the thread necromancy, but it see...   Apr 29 2023, 01:13 AM
|- - HSchirmer   QUOTE (marsbug @ Apr 29 2023, 02:13 AM) M...   Apr 30 2023, 04:21 PM
- - serpens   This is in accord with modeled changes in the obli...   May 3 2023, 12:39 PM


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