A new image captured by European Space Agency’s Mars Express spacecraft showcases an ice crater on the surface of mars.
The Korolev Crater is 82 km wide and nearly 2 kms deep, and holds perpetually frozen water in its basin. Ice still exists on Mars near its poles and the Martian atmosphere has tiny amounts of water vapour.
Kirsten Siebach, a planetary geologist at Rice University in Houston, claims that there used to be water in rivers and lakes on Mars but it largely either froze as the atmosphere dissipated or was lost to space.