Promethei Planum

English Etymology Named after the classical Martian albedo feature Promethei, ultimately from la Promētheus Prometheus, + mul planum elevated plain, plateau. Proper noun Promethei planum en planetology A planum in the south polar region of Mars. en March 12, 2008 Icy Promethei Planum European Space Agency https://www.esa.int/Science_Exploration/Space_Science/Mars_Express/Icy_Promethei_Planum Promethei Planum, an area seasonally covered with a more than 3500 m thick layer of ice in the martian south polar region, was the subject of the High Resolution Stereo Camera’s focus on 22 September 2005 as Mars Express was in orbit above the Red Planet. https://web.archive.org/web/20260927164428/https://www.esa.int/Science_Exploration/Space_Science/Mars_Express/Icy_Promethei_Planum 27 September 2026 en August 25, 2009 Promethei Planum NASA Science National Aeronautics and Space Administration https://science.nasa.gov/photojournal/promethei-planum/ Located near the south polar cap, Promethei Planum contains many different surface textures. https://web.archive.org/web/20260928045659/https://science.nasa.gov/photojournal/promethei-planum/ 28 September 2026 en 2015 Ailish M. Kress; James W. Head Late Noachian and early Hesperian ridge systems in the south circumpolar Dorsa Argentea Formation, Mars: Evidence for two stages of melting of an extensive late Noachian ice sheet Planetary and Space Science 109–110 1–20 10.1016/j.pss.2014.11.025 The ridge populations fall into two age groups: ridge systems between 270° and 0° E date to the Early Hesperian, but to the east, the Promethei Planum and the Chasmata ridge systems date to the Late Noachian.