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Springtime on Mars

Reposted around a lot, I'm sure, but this is a really freaky image. It looks like worms beneath human skin, but it's actually Spring on Mars.



Spring has sprung on Mars, bringing with it the disappearance of carbon dioxide ice (dry ice) that covers the north polar sand dunes. In spring, the sublimation of the ice (going directly from ice to gas) causes a host of uniquely Martian phenomena.

In this image streaks of dark basaltic sand have been carried from below the ice layer to form fan-shaped deposits on top of the seasonal ice. The similarity in the directions of the fans suggests that they formed at the same time, when the wind direction and speed was the same. They often form along the boundary between the dune and the surface below.


Link.

(crossposted)

Comments

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(Anonymous)
Mar. 24th, 2010 02:53 pm (UTC)
Dammit! I would have just shrugged if you hadn't planted that image. Now I feel like I need a shower, or I would if I wasn't scared of disturbed worms wriggling in agitation.
lucius_t
Mar. 27th, 2010 01:56 am (UTC)
It does look like a particularly noxious skin condition.
benpeek
Mar. 30th, 2010 01:07 am (UTC)
don't you just wanna live there?
lucius_t
Mar. 30th, 2010 01:24 am (UTC)
You first.
benpeek
Mar. 30th, 2010 01:55 am (UTC)
just let me apply to the space program...
lucius_t
Mar. 30th, 2010 03:54 am (UTC)
Hurry...
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