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Robot Arm - Observations and Excavations
Steve G
post May 30 2008, 05:15 AM
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Tricky to line up the two RAC images but here is my attempt.

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bcory
post May 31 2008, 07:39 PM
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Maybe the thrusters melted some of the ice and formed a slurry with the dirt and dust that re-froze and stuck to the lander leg smile.gif
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MahFL
post May 31 2008, 08:24 PM
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The whole point of the mission is to find Water Ice, remember this is frozen water you can melt and drink, not frozen carbon dioxide. Also to test the ice to see if it has been regularly melted, but with current summer high temps of -30 C that seems unlikely. Though at one time it does seem liquid water flowed all over Mars.
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Posts in this topic
- Steve G   Robot Arm - Observations and Excavations   May 30 2008, 05:15 AM
- - MicroKid   Any idea what the long spiral looking object (lowe...   May 30 2008, 06:26 AM
|- - nilstycho   Phoenix twitters "The picture shows a little ...   May 31 2008, 05:08 PM
- - Steve G   I was wondering that when I stitched the images to...   May 30 2008, 06:48 AM
- - djellison   EGD had a go at this in the Sol 3+ thread, I'm...   May 30 2008, 07:51 AM
- - djellison   If I had to guess what it was - I'd say someth...   May 30 2008, 07:54 AM
- - um3k   Sure looks like ice to me: http://fawkes3.lpl.ariz...   May 31 2008, 03:47 AM
|- - bcory   QUOTE (um3k @ May 30 2008, 11:47 PM) Sure...   May 31 2008, 04:18 AM
|- - ElkGroveDan   QUOTE (um3k @ May 30 2008, 07:47 PM) Sure...   May 31 2008, 05:35 AM
- - dvandorn   Could be ancient duricrust, buried under a more re...   May 31 2008, 04:57 AM
|- - ElkGroveDan   QUOTE (dvandorn @ May 30 2008, 08:57 PM) ...   May 31 2008, 05:40 AM
||- - centsworth_II   QUOTE (ElkGroveDan @ May 31 2008, 12:40 A...   May 31 2008, 05:51 AM
|- - Marcel   QUOTE (dvandorn @ May 31 2008, 05:57 AM) ...   May 31 2008, 08:59 AM
- - James Sorenson   OMFG Im gonna need that swear jar now . It looks...   May 31 2008, 06:24 AM
- - djellison   The arm can't get to THAT Ice, the 'upper ...   May 31 2008, 08:36 AM
- - djellison   Couple of RAC obs.   May 31 2008, 11:15 AM
|- - ustrax   If that is ice...that is GOLD!!! The ...   May 31 2008, 01:36 PM
- - Doc   I dont think thats ice. Wouldnt we see signs of su...   May 31 2008, 11:39 AM
- - eeergo   I don't think smoke would be seen if it was ic...   May 31 2008, 12:04 PM
- - nprev   Wouldn't the ability of any 'smoke' to...   May 31 2008, 12:38 PM
- - tasp   Visible 'plumage' from exposed ice would d...   May 31 2008, 12:47 PM
|- - DDAVIS   'Visible 'plumage' from exposed ice wo...   May 31 2008, 02:12 PM
- - tasp   LOL. See what happens when it takes me 10 minutes...   May 31 2008, 12:49 PM
- - nprev   Just out of curiousity, with respect to the viewpo...   May 31 2008, 02:32 PM
- - bcory   All I can say that it seems to me that whatever it...   May 31 2008, 03:11 PM
- - ilbasso   What's the size of those patches relative to t...   May 31 2008, 03:14 PM
- - scalbers   It was interesting at Friday's news conference...   May 31 2008, 03:24 PM
- - Marz   Assuming those plates are ice [w00t!!...   May 31 2008, 04:25 PM
- - MahFL   The Phoenix site seems down   May 31 2008, 04:33 PM
|- - bcory   QUOTE (MahFL @ May 31 2008, 12:33 PM) The...   May 31 2008, 04:40 PM
|- - teck   Is this a Philips screw?   May 31 2008, 05:09 PM
|- - um3k   QUOTE (bcory @ May 31 2008, 11:40 AM) It ...   May 31 2008, 05:25 PM
|- - nprev   QUOTE (um3k @ May 31 2008, 10:25 AM) Did ...   May 31 2008, 11:38 PM
|- - mars loon   QUOTE (nprev @ Jun 1 2008, 12:38 AM) Phoe...   May 31 2008, 11:51 PM
- - Decepticon   If this does to turn out to frozen water, will thi...   May 31 2008, 04:46 PM
|- - centsworth_II   QUOTE (Decepticon @ May 31 2008, 12:46 PM...   May 31 2008, 04:54 PM
|- - James Sorenson   QUOTE (centsworth_II @ May 31 2008, 08:54...   May 31 2008, 05:10 PM
|- - ugordan   QUOTE (James Sorenson @ May 31 2008, 07:1...   May 31 2008, 05:24 PM
- - vikingmars   With alittle processing you can see more easily un...   May 31 2008, 04:49 PM
- - scalbers   These under the lander images are really neat and ...   May 31 2008, 04:59 PM
- - Decepticon   QUOTE Do all the cleared off spots correlate well ...   May 31 2008, 05:05 PM
- - scalbers   At the cold ambient temperatures sublimation would...   May 31 2008, 05:20 PM
- - dot.dk   Remember there is the rasp on the backside of the ...   May 31 2008, 05:27 PM
|- - centsworth_II   QUOTE (dot.dk @ May 31 2008, 12:27 PM) Re...   May 31 2008, 05:33 PM
|- - nilstycho   I wonder what would be the pros and cons of a heat...   May 31 2008, 05:47 PM
- - eeergo   They were expecting the hard ground, remember they...   May 31 2008, 05:44 PM
|- - centsworth_II   QUOTE (eeergo @ May 31 2008, 12:44 PM) Th...   May 31 2008, 05:51 PM
|- - Cargo Cult   QUOTE (centsworth_II @ May 31 2008, 06:51...   May 31 2008, 06:37 PM
|- - centsworth_II   QUOTE (Cargo Cult @ May 31 2008, 02:37 PM...   May 31 2008, 06:58 PM
|- - 4th rock from the sun   I've enhanced to under-side image to improve v...   May 31 2008, 07:04 PM
- - bcory   http://www.nasa.gov/images/content/234067main_unde...   May 31 2008, 06:04 PM
- - OWW   Scary thought: It could be frozen pools of leaked/...   May 31 2008, 06:26 PM
- - climber   Holy cow, it's ICE : http://planetary.org/blog   May 31 2008, 07:03 PM
- - Steve G   I think this is a splendid opportunity to put MARD...   May 31 2008, 07:03 PM
- - bcory   Maybe the thrusters melted some of the ice and fo...   May 31 2008, 07:39 PM
|- - MahFL   The whole point of the mission is to find Water Ic...   May 31 2008, 08:24 PM
|- - mars loon   This JPL press release has a bit more detail about...   May 31 2008, 10:12 PM
- - SpaceListener   Normally, the surface of ice is plain, 90 degree t...   May 31 2008, 11:45 PM
- - nprev   Glad to hear that CNN is exercising some restraint...   Jun 1 2008, 12:04 AM
- - eeergo   QUOTE (SpaceListener @ Jun 1 2008, 01:45 ...   Jun 1 2008, 12:28 AM
|- - SpaceListener   QUOTE (eeergo @ May 31 2008, 07:28 PM) Ta...   Jun 1 2008, 02:36 AM
|- - JRehling   The polygonal surface of the soil is enough to tel...   Jun 1 2008, 03:38 AM
- - bcory   Accept here we're talking about permafrost gro...   Jun 1 2008, 12:32 AM
- - jmjawors   For the record, CNN is reporting it, but thankfull...   Jun 1 2008, 12:36 AM
- - Thu   The ChemCam should be very helpful in this case. D...   Jun 1 2008, 01:45 AM
|- - tuvas   QUOTE (Thu @ May 31 2008, 06:45 PM) The C...   Jun 1 2008, 03:11 AM
- - James Sorenson   New images, is this a scoop mark in the soil? htt...   Jun 1 2008, 05:26 AM
|- - jmjawors   QUOTE (James Sorenson @ Jun 1 2008, 12:26...   Jun 1 2008, 05:41 AM
|- - djellison   QUOTE (James Sorenson @ Jun 1 2008, 06:26...   Jun 1 2008, 09:04 AM
- - ElkGroveDan   Now this one is cool, scoop, CD, and flag all in o...   Jun 1 2008, 05:34 AM
- - glennwsmith   ElkGroveDan, I thought you were going to referenc...   Jun 1 2008, 06:53 AM
|- - 1101001   Any speculation as to the cause of the hollows in ...   Jun 1 2008, 07:02 AM
- - Steve G   Sure looks like dirty ice, like what you see in th...   Jun 1 2008, 07:28 AM
- - climber   I agree we've got to be cautious but, come on ...   Jun 1 2008, 08:06 AM
|- - centsworth_II   QUOTE (climber @ Jun 1 2008, 03:06 AM) .....   Jun 1 2008, 08:22 AM
- - Syrinx   Sorry to deviate from the excitement of ice for a ...   Jun 1 2008, 09:15 AM
|- - climber   QUOTE (Syrinx @ Jun 1 2008, 11:15 AM) Sor...   Jun 1 2008, 10:11 AM
|- - Airbag   I attempted to make an RGB image with one of the s...   Jun 1 2008, 01:21 PM
|- - nilstycho   But we do have relative knowledge of exposures...   Jun 1 2008, 04:30 PM
|- - mhoward   QUOTE (nilstycho @ Jun 1 2008, 10:30 AM) ...   Jun 1 2008, 04:34 PM
|- - ugordan   Knowing the exposures doesn't help us really. ...   Jun 1 2008, 04:41 PM
|- - nilstycho   Ah, OK. I forgot about the histogram stretch. So o...   Jun 1 2008, 09:16 PM
- - dvandorn   Here is an observation that I will note I haven...   Jun 1 2008, 04:16 PM
- - Phil Stooke   "Regarding the screw underneath the lander. M...   Jun 1 2008, 04:42 PM
- - djellison   They don't have to deal with it - they have ca...   Jun 1 2008, 10:14 PM
|- - nilstycho   So do the originals hit PDS eventually, and until ...   Jun 1 2008, 11:40 PM
|- - john_s   Two reasons really- one is that the science team w...   Jun 2 2008, 12:24 AM
|- - nilstycho   Of course: Anti-scoopage. Thank you.   Jun 2 2008, 01:24 AM
- - cschmidt   Thinking again about the ice, I have been wonderin...   Jun 1 2008, 10:51 PM
|- - jbytów   .   Jun 1 2008, 11:25 PM
- - elakdawalla   Anti-scoopage is an important part of it, but that...   Jun 2 2008, 01:50 AM
- - nprev   Kind of hate to ask this, but if a given amount of...   Jun 2 2008, 02:17 AM
|- - Tom Tamlyn   One of the MRO engineers is continuing to post fas...   Jun 2 2008, 03:33 AM
- - alan   Speaking of scoopage the arm has grabbed its first...   Jun 2 2008, 04:51 AM
|- - jmjawors   QUOTE (alan @ Jun 1 2008, 11:51 PM) Speak...   Jun 2 2008, 05:06 AM
|- - Reed   Looks like it was scooped from the same area as th...   Jun 2 2008, 05:22 AM
- - dvandorn   If this was the scoop-and-dump, the scoop leaks. ...   Jun 2 2008, 05:43 AM
- - James Sorenson   False-color image saturated to 60%, of the RA sc...   Jun 2 2008, 05:59 AM
|- - Marz   whoa! Are the small clumps of blueish-white ...   Jun 2 2008, 06:07 AM
- - djellison   I had a go at it myself - the LED's really wor...   Jun 2 2008, 06:14 AM
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