Viking Found Organics |
Viking Found Organics |
Jan 5 2011, 09:18 AM
Post
#1
|
|
Member Group: Members Posts: 259 Joined: 23-January 05 From: Seattle, WA Member No.: 156 |
It appears Viking found organics after all! My head is spinning.
|
|
|
Jan 5 2011, 03:14 PM
Post
#2
|
|
Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Here is a link to the abstract: http://www.agu.org/pubs/crossref/2010/2010JE003599.shtml
And here is a link to a detailed abstract for Europlanet 2009 (some of the same authors) that shows thermolysis results of soils from the Atacama desert: http://meetingorganizer.copernicus.org/EPS.../EPSC2009-2.pdf The authors did their theoretical calculations based on methane release and subsequent oxidation. The "smoking gun"* is the detection of cholorohydrocarbons. (*Bonus ironic trivia: Carbon tetrachloride (CCl4) was widely used as a fire extinguisher) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
|
|
|
Feb 1 2013, 07:13 AM
Post
#3
|
|
Junior Member Group: Members Posts: 93 Joined: 21-January 13 Member No.: 6845 |
Mod: Rule 3.5: Avoid excessive quoting. If your reply will immediately follow the post you're replying to, do not quote it at all. If your reply refers to a post farther up in the thread, quote only that text that is relevant to your reply. Avoid quoting images.
This whole business was discussed in three subsequent publications: Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars Comment on “Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars” by Rafael Navarro-González et al Reply to comment by Biemann and Bada on “Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars” In the end the SAM data made it clear that the chloromethanes can be produced by pyrolysis of organic material and perchlorates on Mars. The origin of the organic molecules (Martian or terrestrial contamination) can not be determined without other methods. More is needed in the future and I hope for SAM doing that job. |
|
|
Lo-Fi Version | Time is now: 29th April 2024 - 03:20 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |