Oberon (moon) geological feature on Oberon: craters and chasmata ('canyons'—deep, elongated, steep-sided depressions which would probably be described as rift valleys or escarpments if on Earth). Oberon's surface is the most heavily cratered of all the Uranian moons, with a crater density approaching saturation—when the formation of new craters is balanced by destruction of old ones. This high number of craters indicates that Oberon has the most ancient surface among Uranus's moons. The crater diameters range up to 206 kilometers for the largest known crater, Hamlet. Many large craters are surrounded by bright impact ejecta (rays) consisting of relatively fresh ice. The
Planet Moon Studios Planet Moon Studios Planet Moon Studios was a game development studio based in San Francisco, California founded by ex-Shiny Entertainment developers Nick Bruty (President) and Bob Stevenson (CEO) in 1997. Planet Moon developed the games "" (Interplay, 2000), "Armed and Dangerous" (LucasArts, 2003) and "Infected" (Majesco Entertainment, 2005). The games are generally critically acclaimed for both gameplay and graphics, and are often lauded for their humor in various reviews. In January 2011, Bigpoint Games acquired the Planet Moon Studios staff in San Francisco, California, but did not acquire the company, its intellectual properties, or its other assets. Shortly thereafter, Planet