Friday, August 06, 2010
UA camera finds bulls-eye on Mars
The UA-run HiRISE camera on the Mars Reconnaissance Orbiter spotted this unusual "bulls-eye" crater on Mars. Project member Sarah Milkovich told Space.com that it could be either due to uneven erosion due to weak layers underlying the crater or a fortuitous second impact right in the center of the larger crater.
[Photo credit: NASA/JPL/University of Arizona]
at 8:10 PM