High Quality Content by WIKIPEDIA articles! Radau Crater is an impact crater in the Oxia Palus quadrangle of Mars, located 17.1° N and 4.8° W. It is 114.5 km in diameter and was named for Rodolphe Radau, a French astronomer (1835-1911). The Oxia Palus quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Oxia Palus quadrangle is also referred to as MC-11 (Mars Chart-11). The Oxia Palus quadrangle covers the region of 0° to 45° west longitude and 0° to 30° north latitude on Mars. Mars Pathfinder landed in the Oxia Palus quadrangle at 19.13° N and 33.22° W, on July 4, 1997. Crater names in Oxia Palus are a Who's Who for famous scientists. Besides Galilaei and DaVinci, some of the people who discovered the atom and radiation are there: Curie, Becquerel, and Rutherford.