|Diameter||80.47 km (50 mi)|
Vishniac is the larger 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. The crater measures approximately 80.47 kilometres (50 mi) in diameter. Its name was approved by the International Astronomical Union in 1976.
- Sagan, Carl (1980). Cosmos. New York: Random House, Inc.. p. 126. ISBN 0-394-50294-9.
- Malin Space Science Systems (2000). "Return to "Giant's Footprint" 3 Decades After Mariner 7 Flyby". http://mars.jpl.nasa.gov/mgs/msss/camera/images/3_2_00_vishniac/index.html.
- "Vishniac (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
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