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Astronomy Picture of the Day -- White Rock Fingers on Mars
NASA ^
| October 30, 2011
| (see photo credit)
Posted on 10/30/2011 5:54:42 PM PDT by SunkenCiv
Explanation: What caused this unusual light rock formation on Mars? Intrigued by the possibility that they could be salt deposits left over as an ancient lakebed dried-up, detailed studies of these fingers now indicate a more mundane possibility: volcanic ash. Studying the exact color of the formation indicated the possible volcanic origin. The light material appears to have eroded away from surrounding area, indicating a very low-density substance. The stark contrast between the rocks and the surrounding sand is compounded by the unusual darkness of the sand. The above picture was taken with the Thermal Emission Imaging System on the Mars Odyssey spacecraft currently orbiting Mars. The image spans about 10 kilometers inside a larger crater.
(Excerpt) Read more at 129.164.179.22 ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; mars; science
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1
posted on
10/30/2011 5:54:52 PM PDT
by
SunkenCiv
2
posted on
10/30/2011 5:56:23 PM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
3
posted on
10/30/2011 5:56:36 PM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: SunkenCiv
I'm assuming that's an overhead shot, in which case I'd think there are (or were) some powerful winds up there.
Bradbury's sand ships may have been more right on than what we gave him credit.
4
posted on
10/30/2011 6:05:47 PM PDT
by
knarf
(I say things that are true ... I have no proof ... but they're true)
To: SunkenCiv
WTH, Bobby? Trashing your thread before any else of us have the chance?
5
posted on
10/30/2011 6:05:57 PM PDT
by
bigheadfred
(wogga wogga)
To: SunkenCiv
That could pass as a ‘twinkles up’ by OWS protesters out east.
6
posted on
10/30/2011 6:07:57 PM PDT
by
quantim
(Victory is not relative, it is absolute.)
To: SunkenCiv
7
posted on
10/30/2011 6:10:28 PM PDT
by
WKUHilltopper
(And yet...we continue to tolerate this crap...)
To: SunkenCiv
First the Face of Elvis...
Is this the Glove of Michael?
To: bigheadfred
WTF???
9
posted on
10/30/2011 6:18:05 PM PDT
by
Leo Carpathian
(fffffFRrrreeeeepppeeee-ssed!)
To: Leo Carpathian; SunkenCiv
10
posted on
10/30/2011 6:19:09 PM PDT
by
bigheadfred
(wogga wogga)
To: SunkenCiv
To: .30Carbine
That’s absolutely awesome!!
Thanks, .30Carbine.
12
posted on
10/30/2011 6:22:55 PM PDT
by
unkus
(Silence Is Consent)
To: SunkenCiv
To: knarf; TheOldLady; SunkenCiv; JoeProBono
I'm assuming that's an overhead shotSEE? I told you printing the directions to the hideout in English was a GREAT idea! Our secret is safe...
14
posted on
10/30/2011 6:23:11 PM PDT
by
bigheadfred
(wogga wogga)
To: SunkenCiv
To: JoeProBono
16
posted on
10/30/2011 6:36:27 PM PDT
by
bigheadfred
(wogga wogga)
To: .30Carbine
17
posted on
10/30/2011 6:37:31 PM PDT
by
bigheadfred
(wogga wogga)
To: .30Carbine
18
posted on
10/30/2011 7:31:37 PM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: bigheadfred
19
posted on
10/30/2011 7:32:51 PM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: bigheadfred; knarf; quantim; WKUHilltopper; left that other site
Well, yeah. 4 1 thing, I figured Helen’s visage would somehow get mentioned.
Just be glad this topic isn’t about Uranus.
20
posted on
10/30/2011 7:33:54 PM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
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