NASA Briefs Preliminary Plume Findings from Moon Mission |
NASA Briefs Preliminary Plume Findings from Moon Mission |
Nov 10 2009, 09:26 PM
Post
#1
|
|
Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
|
|
|
Nov 12 2009, 05:43 PM
Post
#2
|
|
Member Group: Members Posts: 252 Joined: 5-May 05 From: Mississippi (USA) Member No.: 379 |
NASA TV Schedule
November 13, Friday 10 a.m. - Countdown Status Briefing - KSC (Public and Media Channels) 11 a.m. - ISS Expedition 21 Commentary - JSC (Public and Media Channels) 12 p.m. - LCROSS Science News Briefing – AMES (Public and Media Channels) 12 PM Eastern U.S. time = 17:00 GMT/UTC |
|
|
Nov 13 2009, 04:59 PM
Post
#3
|
|
Member Group: Members Posts: 544 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
News conference is ready to start right now.
Edit: Water! |
|
|
Nov 13 2009, 05:08 PM
Post
#4
|
|
Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
NIR pic of the crater - nice!
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
|
|
Nov 13 2009, 05:21 PM
Post
#5
|
|
Member Group: Members Posts: 544 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
Infrared detection of water vapor and ice, ultraviolet detection of hydroxyl (OH). Lower limit of about 100 kg of water was detected. "Twelve buckets full". "Other stuff" found, too. No word yet on what.
Edit 38 minutes past the hour - CH type molecules present (possibilities are methane, CO2, etc.) |
|
|
Nov 13 2009, 05:45 PM
Post
#6
|
|
Member Group: Members Posts: 233 Joined: 21-April 05 Member No.: 328 |
Cool!!!!!!!!!!!
And now I gotta run over to the "Earthlike Mars" thread to proclaim that there is almost certainly a frozen Oceanus Borealis under the dust of the northern plains of Mars!!!! |
|
|
Nov 13 2009, 07:10 PM
Post
#7
|
|
Newbie Group: Members Posts: 13 Joined: 19-December 04 Member No.: 125 |
Congratulations LCROSS team. Incredible. You guys sent up your own plume today!
|
|
|
Nov 13 2009, 07:45 PM
Post
#8
|
|
Member Group: Members Posts: 100 Joined: 30-November 05 From: Antibes, France Member No.: 594 |
Great News from this not so boring moon!
Is this frozen water the outcome of a meteoritic or cometary impact? Or is it the "ice tip of the iceberg"? I'm in favour of the second hypothesis. If confirmed, why not imagining a network of caves made of liquid water somewhere in the underground! |
|
|
Nov 13 2009, 07:52 PM
Post
#9
|
|
Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
Cool!
Did they say why the hydroxyl signal levels went below the baseline in the end of that plot (bottom one here http://www.nasa.gov/mission_pages/LCROSS/m...lts_images.html )? Just curious... |
|
|
Nov 13 2009, 08:40 PM
Post
#10
|
|
Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Edit 38 minutes past the hour - CH type molecules present (possibilities are methane, CO2, etc.) CO2 won't have any C-H stretches. Can someone post a link for that update? -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
|
|
|
Nov 13 2009, 08:45 PM
Post
#11
|
|
Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
From the press release: "there are hints of other intriguing substances"
http://www.nasa.gov/mission_pages/LCROSS/m...er_results.html Colaprete at the conference: "and there's a whole lot more beyond the water so that's the exciting part in my mind, it's not only about the water, there's actually a lot more here that we're gonna be talking about in the months ahead looking" with the guy on his left with a monalisesque smile in his face...hmm...almost gives me the impression that they happier about that "extra" http://www.youtube.com/watch?v=QOpXMJdZGHc..._embedded#at=54 What can it be? Did I miss the answer to this? -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
|
|
Nov 13 2009, 08:47 PM
Post
#12
|
|
Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Apparently, there's evidence of at least simple organics, Rui. Perhaps that might bolster the cometary origin hypothesis, or imply capture of lunar outgassing products.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
|
|
|
Nov 13 2009, 09:06 PM
Post
#13
|
|
Newbie Group: Members Posts: 6 Joined: 17-September 09 Member No.: 4945 |
Did they say why the hydroxyl signal levels went below the baseline in the end of that plot (bottom one here http://www.nasa.gov/mission_pages/LCROSS/m...lts_images.html )? Just curious... The hydroxyl band is seen in emission, so the drop below the baseline at the end is likely due to the fact that the shepherding spacecraft (SSC) passed through the plume, and was no longer picking up emission from the illuminated ejecta. A negative "band strength" probably just reflects the fact that the overall emission was dropping as the SSC dropped into the darkness of Cabeus. |
|
|
Nov 13 2009, 10:01 PM
Post
#14
|
|
Member Group: Members Posts: 544 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
CO2 won't have any C-H stretches. Can someone post a link for that update? I mentioned it that way because that was how it was presented. Thirty-seven or so minutes into the briefing the question was asked about what else besides water. The fellow mentions "CH type" substances, and rattles off a list of possibilities in which carbon dioxide was included. Methane was another (I guess between it and CO2 you get an average of two), and methanol was also mentioned. I believe the possiblility of some kind of sulfur compound was raised, I can't remember the exact substance. |
|
|
Nov 13 2009, 10:23 PM
Post
#15
|
|
Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Before the specific mention of methane as a 'possibility' there was a comment about having found substance(s) that would evaporate at temperatures just 20-30 degrees warmer than ambient ground temperatures of -220C or -230C, possibly sublimed off a wider area around the crater by falling warm debris. Methane has a boiling point in this range - but are there other candidates?
|
|
|
Lo-Fi Version | Time is now: 24th September 2024 - 10:23 AM |
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. |