A dramatic, fresh impact crater on Mars dominates this spectacular space wallpaper taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Nov. 19, 2013. [ Full Story ]
(Image: © NASA/JPL-Caltech/Univ. of Arizona )
Have a news tip, correction or comment? Let us know at firstname.lastname@example.org.