ESA’s Mars Express Shows Views of the Largest Canyon in Our Solar System

The European Space Agency’s Mars Express orbiter has captured images of portions of the Martian Valles Marineris, the largest system of canyons in the Solar System. Valles Marineris, like many other geological features on the red planet, dwarfs all terrestrial analogues. The Valles Marineris, in particular, is 4,000 km long, 200 km wide and up to 7 km deep. In comparison, the Grand Canyon in North America is just under 450 km long, 16 km wide…