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Update on Mars' atmosphere, Media briefing on NASA Jan 15th |
 Jan 12 2009, 06:01 PM
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 The Poet Dude  Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60  |
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Jan 12 2009, 10:43 PM
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Senior Member Group: Members Posts: 1599 Joined: 14-October 05 From: Vermont Member No.: 530 |
Isn't the methane emitted from mud volcanoes originally biological in origin, even if it's geological now?
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Jan 12 2009, 11:45 PM
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 Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
QUOTE (stevesliva @ Jan 12 2009, 05:43 PM)  Isn't the methane emitted from mud volcanoes originally biological in origin, even if it's geological now? Dunno. I always assumed it was from oxidation of iron minerals with H2 reduction of carbonate rocks. (http://en.wikipedia.org/wiki/Serpentinite) [olivine + wa-wa + carbon dioxide --> serpentine + magnetite + methane] (Fe,Mg)2SiO4 + nH2O + CO2 --> Mg3SiO5(OH4) + Fe3O4 + CH4 -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Stu Update on Mars' atmosphere Jan 12 2009, 06:01 PM
djellison Methane? Jan 12 2009, 06:02 PM
HughFromAlice QUOTE (djellison @ Jan 13 2009, 03:32 AM)... Jan 14 2009, 10:07 AM Stu I reckon so... after all, all those plesiosaurs, s... Jan 12 2009, 06:06 PM elakdawalla Mike Mumma's name is synonymous with methane.
... Jan 12 2009, 06:16 PM Tesheiner I'm just trying to remember... wasn't some... Jan 12 2009, 07:09 PM remcook For more detail you could probably look at Mumma... Jan 12 2009, 07:09 PM lyford QUOTE Mike Mumma's name is synonymous with met... Jan 12 2009, 07:16 PM helvick Yep Methane and with the others on this Press Conf... Jan 12 2009, 09:03 PM Juramike Here's some handy numbers (source: http://en.w... Jan 12 2009, 10:04 PM Tom Tamlyn There's some interesting background on Mars an... Jan 13 2009, 12:52 AM marswalker Well researched. A theory is that water, iron ox... Jan 16 2009, 06:44 PM tdemko The methane from most large mud volcanoes (e.g. Ca... Jan 13 2009, 02:43 AM Enceladus75 I hope that it has to do with a detection of metha... Jan 14 2009, 11:15 PM ilbasso The Sun is claiming that NASA will announce that t... Jan 15 2009, 02:48 AM Stu QUOTE (ilbasso @ Jan 15 2009, 02:48 AM) T... Jan 15 2009, 06:19 AM Sunspot The story is starting to appear on quite a few new... Jan 15 2009, 11:42 AM djellison Of course, until the news conference, there isn... Jan 15 2009, 11:48 AM stevesliva QUOTE (djellison @ Jan 15 2009, 06:48 AM)... Jan 15 2009, 08:17 PM Pertinax But, but... what about the story about the story t... Jan 15 2009, 01:03 PM Oersted WE'RE ALL GONNA DIE, RUN, RUN!!!... Jan 15 2009, 01:11 PM djellison QUOTE (Oersted @ Jan 15 2009, 01:11 PM) I... Jan 15 2009, 02:25 PM Juramike QUOTE (djellison @ Jan 15 2009, 09:25 AM)... Jan 15 2009, 03:32 PM OWW Forgive me, but I don't understand why methane... Jan 15 2009, 01:54 PM ugordan QUOTE (OWW @ Jan 15 2009, 02:54 PM) Forgi... Jan 15 2009, 02:00 PM SirBruce According to news reports, the latest science have... Jan 15 2009, 04:34 PM centsworth_II I continue to be disappointed in the failure to in... Jan 15 2009, 04:48 PM Juramike QUOTE (SirBruce @ Jan 15 2009, 11:34 AM) ... Jan 15 2009, 05:05 PM Juramike As written on Fox News:
"(American media out... Jan 15 2009, 05:12 PM djellison The story here, is that Astrobiology is off topic ... Jan 15 2009, 05:26 PM SirBruce QUOTE (djellison @ Jan 15 2009, 09:26 AM)... Jan 15 2009, 06:05 PM djellison QUOTE (SirBruce @ Jan 15 2009, 06:05 PM) ... Jan 15 2009, 06:29 PM Sunspot QUOTE (djellison @ Jan 15 2009, 06:29 PM)... Jan 15 2009, 06:35 PM djellison QUOTE (Sunspot @ Jan 15 2009, 06:35 PM) T... Jan 15 2009, 07:46 PM SirBruce I wasn't going to post again -- I've found... Jan 15 2009, 08:04 PM djellison QUOTE (SirBruce @ Jan 15 2009, 08:04 PM) ... Jan 15 2009, 08:20 PM ilbasso QUOTE (djellison @ Jan 15 2009, 03:20 PM)... Jan 15 2009, 10:24 PM Sunspot QUOTE (djellison @ Jan 15 2009, 05:26 PM)... Jan 15 2009, 06:24 PM Hungry4info If you want, you can discuss it on the Extrasolar ... Jan 15 2009, 06:55 PM imipak Edit - remove silly question. Apologies for the no... Jan 15 2009, 06:59 PM Juramike And the evidence is not clear either way....space.... Jan 15 2009, 07:17 PM Stu Anyone know of an "audio only" link for ... Jan 15 2009, 07:21 PM Paolo On NASA's portal http://www.nasa.gov/mission_p... Jan 15 2009, 07:32 PM imipak BBC piece. Jan 15 2009, 07:37 PM tty The only way to pin the origin of the methane down... Jan 15 2009, 07:41 PM Juramike QUOTE (tty @ Jan 15 2009, 02:41 PM) The o... Jan 15 2009, 07:44 PM PDP8E mars atmosphere is active
Methane plumes are seen ... Jan 15 2009, 07:41 PM Juramike The source could be clathrated methane (see avatar... Jan 15 2009, 07:52 PM ngunn QUOTE (Juramike @ Jan 15 2009, 07:52 PM) ... Jan 15 2009, 08:03 PM Juramike QUOTE (ngunn @ Jan 15 2009, 03:03 PM) Exa... Jan 15 2009, 08:10 PM imipak Active hotspots identified are Terra Sabae, Nili F... Jan 15 2009, 07:52 PM elakdawalla Let me try to explain in a different way. This si... Jan 15 2009, 08:10 PM Sunspot QUOTE (elakdawalla @ Jan 15 2009, 08:10 P... Jan 15 2009, 10:34 PM djellison QUOTE (Sunspot @ Jan 15 2009, 10:34 PM) T... Jan 16 2009, 12:32 AM Julius Any ideas as to whether current Mars orbiters with... Jan 15 2009, 08:20 PM ollopa I couldn't help noticing that two of the panel... Jan 15 2009, 08:22 PM silylene i do wish that the researchers did not seriously c... Jan 15 2009, 09:06 PM marsbug QUOTE (silylene @ Jan 15 2009, 09:06 PM) ... Jan 15 2009, 10:03 PM gpurcell FWIW, looks like the observations were purely Eart... Jan 15 2009, 09:19 PM Fran Ontanaya Oi, if there's snow, snow will be studied, not... Jan 16 2009, 12:41 AM vjkane I just posted a summary of a proposed mission to f... Jan 16 2009, 01:15 AM Oersted Ok, we´re all getting serious and discussing signa... Jan 16 2009, 01:36 AM nprev Thanks for the interesting summary on your blog, V... Jan 16 2009, 01:39 AM Juramike Are CO2:CH4 clathrates possible?
If you mean CO2 ... Jan 16 2009, 02:00 AM marswalker Not to mention the levels of UV - once at the surf... Jan 16 2009, 06:49 PM nprev Sounds less stable than me after an hour without a... Jan 16 2009, 03:43 AM eoincampbell The rules page is quite a read itself...
Simple, y... Jan 16 2009, 04:00 AM dvandorn While there will be an awful lot of study and theo... Jan 16 2009, 05:36 AM HughFromAlice QUOTE (dvandorn @ Jan 16 2009, 03:06 PM) ... Jan 16 2009, 11:44 AM silylene QUOTE (HughFromAlice @ Jan 16 2009, 11:44... Jan 16 2009, 02:36 PM marsophile There is one ingredient for habitability that, as ... Jan 16 2009, 10:59 PM nprev I thought that there was in fact a small fraction ... Jan 17 2009, 01:51 AM mchan QUOTE (nprev @ Jan 16 2009, 05:51 PM) ...... Jan 17 2009, 03:33 AM mcaplinger QUOTE (mchan @ Jan 16 2009, 07:33 PM) Bot... Jan 17 2009, 05:35 AM nprev Thank you, MC. My suspicious-sounding words undoub... Jan 17 2009, 03:45 AM elakdawalla One of the press at the briefing (I didn't wri... Jan 17 2009, 06:08 AM lyford QUOTE (elakdawalla @ Jan 16 2009, 10:08 P... Jan 18 2009, 08:12 PM imipak I hadn't heard of the concept of sub-permafros... Jan 17 2009, 10:11 PM Fran Ontanaya QUOTE (imipak @ Jan 17 2009, 11:11 PM) I ... Jan 18 2009, 02:58 PM silylene From Science Daily: http://www.sciencedaily.com/re... Jan 18 2009, 02:24 AM sci44 QUOTE (silylene @ Jan 18 2009, 02:24 AM) ... Jan 18 2009, 12:04 PM AndyG I'm having a hard time getting my head around ... Jan 18 2009, 02:36 PM centsworth_II QUOTE (AndyG @ Jan 18 2009, 09:36 AM) how... Jan 18 2009, 06:24 PM nprev Good analysis, Sily; thanks!
The issue at ha... Jan 18 2009, 08:05 AM centsworth_II QUOTE (nprev @ Jan 18 2009, 03:05 AM) The... Jan 18 2009, 09:50 AM centsworth_II Remember about a year ago, NASA was deciding which... Jan 18 2009, 09:39 AM HughFromAlice QUOTE (silylene @ Jan 18 2009, 11:54 AM) ... Jan 18 2009, 10:46 AM nprev Oh, definitely it was deliberate; my only question... Jan 18 2009, 09:17 PM djellison For information - we have discussed the biology is... Jan 19 2009, 03:45 PM ngunn I'd been chewing this over and come to the sam... Jan 19 2009, 04:19 PM Juramike Mars methane map made APOD.
Global map of methane... Jan 19 2009, 04:26 PM MarsIsImportant Much of the known plumes seem to originate from th... Jan 19 2009, 05:37 PM nprev Doug, I support the decision because the rationale... Jan 19 2009, 05:46 PM SpaceListener QUOTE The plumes of methane appeared over northern... Jan 19 2009, 07:36 PM ArMaP Sorry for this question from someone that does not... Jan 19 2009, 10:27 PM Juramike That is an EXCELLENT question.
It would imply one... Jan 19 2009, 11:26 PM aggieastronaut it seems someone else answered the question before... Jan 19 2009, 11:28 PM Juramike And I think I know why in this particular case it... Jan 19 2009, 11:58 PM |
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