Phillips (Martian crater)

Phillips Crater is a crater in the Mare Australe quadrangle of Mars, located at 66.7° south latitude and 45.1° west longitude. It is 190.2 km in diameter and was named after John Phillips, a British geologist (1800–1874), and Theodore E. Philips, a British astronomer (1868–1942). In this area one can often see polygons. Polygons are common where wet ground freezes and thaws. The polygons here are especially visible because there is snow in the cracks between the polygons. The enlarged picture below shows these features.