Tags: Crater.

Vishniac is a largest crater of the Martian surface feature called the Giant’s Footprint. It was named after Wolf V. Vishniac a microbiologist who died on an expedition to Antarctica. Fittingly the crater lies in the Antarctic of Mars. The feature was originally observed by Mariner 7 in 1969. In 1999 the Mars Global Surveyor’s Mars Orbiter Camera was able to provide more detailed pictures.

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