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Mars Art - May 24th edition (dial up warning)

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tridim Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-24-06 01:35 PM
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Mars Art - May 24th edition (dial up warning)
From: http://photojournal.jpl.nasa.gov/targetFamily/Mars

Just one pic this time..
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htuttle Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-24-06 01:39 PM
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1. Whoa! Sandworm tracks?
All the 'ravines' have a similar crescent shape -- what process could cause that? Is this on an incline where wind-sculpted sand cliffs eventually collapse in that fashion, maybe? Fascinating. I've never seen terrain features like that before.
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Viva_La_Revolution Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-24-06 01:40 PM
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2. Polar Shells! Cool!
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows sand dunes overlain by a layer of seasonal carbon dioxide frost in the north polar region of Mars. Sunlight illuminates the scene from the lower left, but slopes facing toward the upper right seem illuminated because of the thicker accumulation of frost on the slopes facing away from the sunlight.
Location near: 76.3°N, 264.3°W
Illumination from: lower left
Season: Northern Winter
http://www.marstoday.com/news/viewsr.html?pid=20677
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spindrifter Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-24-06 02:07 PM
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3. Looks like Arabic writing.
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bemildred Donating Member (1000+ posts) Send PM | Profile | Ignore Wed May-24-06 06:48 PM
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4. Those seem like very high-definition sand dunes.
Why so precise? What lies upwind?
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