to the early seventies with the Mariner 9 orbiter. Indeed, a study published in June 2017, calculated that the volume of water needed to carve all the channels on Mars was even larger than the proposed ocean that the planet may have had. Water was probably recycled many times from the ocean to rainfall around Mars. The pictures below show a channels in Newton Crater. Dunes Dunes are also dominant in the middle of the large crater. See also Climate of Mars Dunes HiRISE HiWish Impact event List of craters on Mars Martian Gullies Ore resources on Mars Planetary nomenclature Seasonal flows on warm Martian slopes Water on Mars References External links Google Mars linked to the Newton Crater Newton Crater Solar Views Phaethontis quadrangle Impact craters on Mars