Although very small amounts of liquid water may occur transiently on the surface of Mars, limited to traces of dissolved moisture from the atmosphere and thin films, large quantities of ice are presen
Mars contains water, though mostly as subsurface permafrost. Surface water is readily visible at some places, such as the ice-filled Korolev Crater, near the north polar ice cap.
Mars canals illustrated by astronomer Percival Lowell, 1898.
History of water on Mars. Numbers represent how many billions of years ago.
In summer 1965, the first close-up images from Mars showed a cratered desert with no signs of water. However, over the decades, as more parts of the planet were imaged with better cameras on more soph
Estimations of the Jezero crater lake level as of 2021
View underneath the Phoenix lander, showing patchy exposures of a bright surface that may be ice.
Possible delta in Margaritifer Sinus quadrangle as seen by THEMIS.
Probable delta in Eberswalde Crater that lies to the NE of Holden Crater, as seen by Mars Global Surveyor. Image in Margaritifer Sinus quadrangle.