Big space rock makes an impact on Mars

Orbiting spacecraft snaps image of huge crater and blast marks

MAJOR IMPACT  Light and dark streaks appear to burst from a fairly fresh impact crater on Mars in an image taken by the HiRISE instrument aboard the Mars Reconnaissance Orbiter.

Univ. of Arizona, JPL-Caltech/NASA

Sometime between July 2010 and May 2012, a really big space rock slammed into Mars.