Unluckiest place on Mars?

[n2doc]

Image courtesy NASA/JPL/University of Arizona

Did Martian geology carve this concentric impact crater, or did a second space rock make a bull's eye? Taken July 9 by the HiRISE camera aboard the Mars Reconnaissance Orbiter, the recently released picture shows an impact crater with a slightly off-center pit in its middle.

Mars experts aren't sure whether the pit formed due to erosion of icy and non-icy layers inside the crater or due to a second—and oddly lucky—impact event.

Published July 29, 2010

[Forkboy]

1. I find Mars more interesting than Earth.

:)