Image Credit: HiRISE, MRO, LPL (U. Arizona),
They might look like trees on Mars, but they're not. Groups of dark brown streaks have been photographed by the Mars Reconnaissance Orbiter on melting pinkish sand dunes covered with light frost. The above image was taken in 2008 April near the North Pole of Mars. At that time, dark sand on the interior of Martian sand dunes became more and more visible as the spring Sun melted the lighter carbon dioxide ice. When occurring near the top of a dune, dark sand may cascade down the dune leaving dark surface streaks -- streaks that might appear at first to be trees standing in front of the lighter regions, but cast no shadows. Objects about 25 centimeters across are resolved on this image spanning about one kilometer. Close ups of some parts of this image show billowing plumes indicating that the sand slides were occurring even while the image was being taken.
File under: obvious, what took you so long, I suppose you think that's insightful
Hasn't this routine gotten old enough yet or just like our lack of concern for a national gun policy, we haven't seen enough innocent and unarmed people die yet, to even think that we should at least try to truly address these issues?
How many more have to die first?
- South Seattle Community CollegeAS-Transfer, present
- US ArmySocial Engineering and Drinking, 2002 - 2015
- United States ArmyGeek, 2010 - 2015
- United States ArmyGrease Monkey, 2002 - 2010
Steam Handle: Reverend Jesus Ingress Codename: Kiltedfox
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