s-c-i-guy: ‘Victoria Crater’ at Meridiani Planum This image…
‘Victoria Crater’ at Meridiani Planum
This image from the High Resolution Imaging Science Experiment on
NASA’s Mars Reconnaissance Orbiter shows “Victoria crater,” an impact
crater at Meridiani Planum, near the equator of Mars. The crater is
approximately 800 meters (half a mile) in diameter. It has a distinctive
scalloped shape to its rim, caused by erosion and downhill movement of
crater wall material. Layered sedimentary rocks are exposed along the
inner wall of the crater, and boulders that have fallen from the crater
wall are visible on the crater floor. The floor of the crater is
occupied by a striking field of sand dunes.Since January 2004,
the Mars Exploration Rover Opportunity has been operating at Meridiani
Planum. Five days before this image was taken, Opportunity arrived at
the rim of Victoria crater, after a drive of more than 9 kilometers
(over 5 miles). The rover can be seen in this image, at roughly the “ten
o’clock” position along the rim of the crater.Image credit: NASA/JPL-Caltech/University of Arizona/Cornell/Ohio State University
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