The holes in the top right-hand side of the picture were created by the Robotic Arm's rasp tool. Image credit: NASA/JPL-Caltech/University of Arizona/Texas A&M University
NASA’s $720 million Mars Reconnaissance Orbiter has provided groundbreaking insight into the environmental makeup of the planet during its earliest geological age. Images from the MRO reveal that the Red Planet was originally a muddy brown, with vast lakes and flowing rivers covering a predominantly clay surface.
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