Things That Go Boing in the Brain
See also: AMERICAN DIGEST
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Avalanches on Mars’ North Polar Scarps. Material, likely including fine-grained ice and dust and possibly including large blocks, has detached from a towering cliff and cascaded to the gentler slopes below. The cloud is about 180 meters (590 feet) across and extends about 190 m (625 ft) from the base of the steep cliff. (via Martian landscapes - The Big Picture - Boston.com)
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