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Astronomy Picture of the Day -- Night in the Andes Ice Forest
NASA ^ | September 07, 2013 | (see photo credit)

Posted on 09/08/2013 11:58:50 AM PDT by SunkenCiv

Explanation: This forest of snow and ice penitentes reflects moonlight shining across the Chajnantor plateau. The region lies in the Chilean Andes at an altitude of 5,000 meters, not far from one of planet Earth's major astronomical observatories, the Atacama Large Millimeter/submillimeter Array. Up to several meters high, the flattened, sharp-edged shapes, and orientation of the penitentes tend to minimize their shadows at local noon. In the dry, cold, thin atmosphere, sublimation driven by sunlight is important for their formation. A direct transition from a solid to a gaseous state, sublimation shapes other solar system terrains too, like icy surfaces of comets and the polar caps of Mars. Above the dreamlike landscape stretches the southern night sky. Their own forms rooted in myth, look for the constellations Pegasus, Andromeda, and Perseus near the panorama's left edge. Bright and colorful stars of Orion the Hunter are near center, with the Large Magellanic Cloud and the South Celestial Pole on the far right.

September 07, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit & Copyright: Babak Tafreshi (TWAN)]

1 posted on 09/08/2013 11:58:50 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One

2 posted on 09/08/2013 11:59:15 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv

I suspect there are very similar scenes on Mars.


3 posted on 09/08/2013 12:11:04 PM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: SunkenCiv

I don’t know. There’s something about that photo that reminds me of the time Donna took me cross-country skiing and a penitente seemed to rise up from nowhere and knocked her skis off.


4 posted on 09/08/2013 12:13:22 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6

Were you skiing in New Mexico?

(Obscure NM religious reference.)


5 posted on 09/08/2013 12:39:50 PM PDT by Sherman Logan (Mark Steyn: "In the Middle East, the enemy of our enemy is also our enemy.")
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To: SunkenCiv

That looks like the Martian landscape.

I half-expected to see Sheila Jackson Lee’s flag in the background...


6 posted on 09/08/2013 12:45:33 PM PDT by Old Sarge (Opinions are like orgasms: only mine count, and I couldn't care less if you have one...)
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To: Old Sarge

Have spent a fair amount of time up in the Atacama near the area.

Never knew of or got to see this ice forest, but the Atacama sure resembles the Moon. No plants or animals for hundreds of miles. No rain, but nightly heavy fog. Very intriguing region!


7 posted on 09/08/2013 1:01:55 PM PDT by X-spurt (CRUZ missile - armed and ready.)
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To: SunkenCiv

I imagine it’s pretty Chile up there ...


8 posted on 09/08/2013 1:36:14 PM PDT by mikrofon (Amazin' Andes)
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To: SunkenCiv

Anyone know how these things form just all by themselves on the dirt?


9 posted on 09/08/2013 1:55:22 PM PDT by Beowulf9
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To: SunkenCiv

an astonishing landscape that scant few will ever see firsst hand.

Id love the opportunity to be able to photograph it .

Thanks


10 posted on 09/08/2013 2:17:29 PM PDT by MeshugeMikey (Block Captain..Tyranny Response Team / al-Kilab Division)
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To: SunkenCiv

Strange seeing Orion upside down.


11 posted on 09/08/2013 2:26:40 PM PDT by kanawa
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To: Sherman Logan

Nope. I’ve never been cross country skiing in New Mexico. I’m looking forward to retiring there, though. A guy sold me some beachfront property on the Gulf of New Mexico!


12 posted on 09/08/2013 3:39:15 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6

Well, there are some spectacularly beautiful places to go.

http://en.wikipedia.org/wiki/Valle_Grande,_New_Mexico


13 posted on 09/08/2013 4:42:08 PM PDT by Sherman Logan (Mark Steyn: "In the Middle East, the enemy of our enemy is also our enemy.")
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