Vishniac is the 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. 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.
References
- Malin Space Science Systems. Return to "Giant's Footprint" 3 Decades After Mariner 7 Flyby. Accessed November 6, 2005.