My Assistant
Round Stain Near Purgatory Dune, round stain visible in the sand |
| Guest_Richard Trigaux_* |
Jun 21 2005, 05:49 AM
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#1
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Guests |
Hello all,
some of us (in the Free! thread) noticed a round dark stain near Oppy: visible here on the NASA site (look bottom right, just above Oppy's solar panel). So I open this thread for this. What such a stain could be? It looks just like a mere change in color, with the same texture than around it. The more trivial explanation would be a drop of lubricant fallen from the apparatus at the end of Oppy's solar panels, when she passed here just before she got stuck. With a temperature of 20° oil could spread, and certain oil compositions would not evaporate, at least not fast. But there would be more enthralling explanations. For instance a colony of bacteria could look like this. Or other really unexpected explanation. In any case we do not know what it is and it may be potentially very interesting. So I think it is worth a bit of examination with the instruments. Just be cautious not to place the microscope right on it, if it is oil it would irremediably dirty the lens. |
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Jun 21 2005, 02:09 PM
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#2
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![]() Junior Member ![]() ![]() Group: Members Posts: 90 Joined: 20-April 05 Member No.: 289 |
Surely any stain from a "leak" would mean that we would see tracks adjacent to the stain location?
The only alternative might be that it came from a joint on the arm that moves the RAT and Microcopic Imager. Doesn't sound plausible to me. Doug - I wonder why RW and ES haven't jumped on this one (you know who I mean)!!! |
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Jun 21 2005, 02:27 PM
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#3
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
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Richard Trigaux Round Stain Near Purgatory Dune Jun 21 2005, 05:49 AM
dilo Someone noticed similar spots elsewere...
As alrea... Jun 21 2005, 06:10 AM
Richard Trigaux QUOTE (dilo @ Jun 21 2005, 06:10 AM)As alread... Jun 21 2005, 10:01 AM
abalone Maybe it was a cat?..... no,... they usually leave... Jun 21 2005, 11:13 AM
odave I think we've determined that all the cats ar... Jun 21 2005, 01:20 PM

mhoward Nah, there are cats on Mars too. They're every... Jun 21 2005, 02:33 PM

Phillip There are at least three of the "oil stains... Jun 21 2005, 02:47 PM

Richard Trigaux
I think that the crater and stain in the right bo... Jun 21 2005, 03:52 PM

odave QUOTE (Richard Trigaux @ Jun 21 2005, 11:52 A... Jun 21 2005, 04:24 PM

Tman QUOTE (odave @ Jun 21 2005, 06:24 PM)Are ther... Jun 21 2005, 04:29 PM

Richard Trigaux QUOTE (Tman @ Jun 21 2005, 04:29 PM)As far as... Jun 21 2005, 05:37 PM

helvick QUOTE (Richard Trigaux @ Jun 21 2005, 06:37 P... Jun 21 2005, 05:45 PM
Bob Shaw I really don't think it's an oil leak - ev... Jun 21 2005, 01:21 PM
odave I'm not a mechanical guy - but how much/what k... Jun 21 2005, 01:46 PM
RNeuhaus Its formation only can happens :
1) Extint cat an... Jun 21 2005, 02:08 PM
RNeuhaus I am not only concerned on the cirle black stains ... Jun 21 2005, 04:40 PM
Richard Trigaux Sol 503 navcam released a round panoramic view of ... Jun 25 2005, 06:58 AM
Phillip My guess (admittedly reading tea leaves) is that i... Jun 26 2005, 09:45 PM![]() ![]() |
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