Phoenix science results, Beginning with December 2008 AGU meeting |
Phoenix science results, Beginning with December 2008 AGU meeting |
Dec 15 2008, 09:22 PM
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I figured it was time for a new thread, since we finally seem to be getting some science results out of Phoenix. The press release should be out shortly.
First numerical result I've heard was given by Peter Smith at today's press briefing at AGU: TEGA found that the soil is composed of 5% calcium carbonate, which is a significant result. Hopefully more will hit the Web soon -- post here when the links go up! --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Feb 27 2009, 01:50 AM
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Senior Member Group: Members Posts: 1043 Joined: 17-February 09 Member No.: 4605 |
A couple of very good points were made over on the baut forum, Phoenix Mars Results thread that warrant repeating here.
In the few seconds of the landing cycle the environment under the lander was high temperature (1200k) and high pressure Ammonia/Nitrogen from the exhaust. This temperature would have broken down perchlorates and vaporised part of the ice layer. Water vapour and dust mixed with the extremely hydroscopic ammonia provides for some interesting products. We can have no certainty over what the the deposits on the strut are made up of, but a possible ammonia water solution, concentration unknown makes for some interesting possibilities. But the key point made is that the deposits are an exotic phenomenon attributable to the lander - not the Martian environment, and have no relevance to the Martian environment.. (cr Vincent Chevrier, BrianC and Nilrem on baut) |
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