Sharad, by the way, stands for "shallow subsurface radar." One of six science instruments on the Mars Reconnaissance Orbiter along with the HiRise camera, it uses radar waves within a 15- to 25-megahertz frequency band to penetrate up to 1 kilometer into the crust of Mars in the hunt for liquid or frozen water. We're not sure why a Sharad image is included with the HiRise pictures, but we like it anyway.
September 4, 2009 10:00 AM PDT
Photo by: NASA/JPL/University of Arizona
| Caption by: Jonathan Skillings
Conversation powered by Livefyre