The European Space Agency’s Mars Express has created a remarkable three-dimensional picture of the region of Mars called Tiu Vallis, which was carved by flowing rivers millions of years ago.

Credits: ESA/DLR/FU Berlin (G. Neukum)

 

Scientists coloured the photographs they had to show the changes in the height of the surface of the planet.

Credits: ESA/DLR/FU Berlin (G. Neukum)

 

Water has carved recesses up to 2000 meters deep,  say the geologists who are from the Freie Universität Berlin and who helped to draft these images.

Credits: ESA/DLR/FU Berlin (G. Neukum)

On the surface of many of the craters there is no sedimentary rock.

Credits: ESA/DLR/FU Berlin (G. Neukum)

These craters arose as a result of asteroid activity when there was no water on Mars any more.

Credits: ESA/DLR/FU Berlin (G. Neukum)

Mars Express snapped the photos during 10 flights across the Martian terrain. The photographed region is approximately 380 km in length.