Many scientists are convinced that there were numerous vast lakes and oceans on the red planet, and this theory is backed up evidence of dried up water beds on the planet's surface.
NASA research into the bumpy surface of the hostile planet suggests that an asteroid once smashed into one of the planet's large bodies of water.
According to the scientists, the asteroid's impact generated a series of cataclysmic tsunamis that made strange on Mar's surface.
Researchers believe that impacts from asteroids were a regular cause of mega-tsunamis on the planet.
Now, to find out how these huge events took place, scientists have searched for locations where asteroids have smashed into Mars.
"We found typical tsunami deposits along the dichotomy between the northern hemisphere and southern hemisphere of Mars," said Dr. Constard from Universite Paris-Sud.
According to Dr. Constard, who worked with NASA, their findings show that there was, at some point, a northern ocean on Mars.
According to NASA, one 'thumbprint-looking' spot, known as the Lomonosov crater, is likely an asteroid scar.
The spot was believed to have been caused by mud or other debris sliding down after being nudged by a moving iceberg, or other big geological event.
However, new evidence suggests that the spot is the result of an asteroid that hit the red planet billions of years ago.
The crater's characteristics strengthen the theory that when the asteroid struck, the spot was part of a vast ocean.
The push and pull of the water with the tsunamis created the crater.