re: "Melting glaciers (10 to 20 million years ago) likely sculpted Mars gullies."
Mars does has a lot of H2O, as ice, at or near its surface, in the form of it's polar caps and surroundng permafrost layer.
Space/Science » in reply to "Melting glaciers (10 to 20 million years ago) likely sculpted Mars gullies."
Mars does has a lot of H2O, as ice, at or near its surface, in the form of it's polar caps and surroundng permafrost layer.