esa mars express valles marineris largest canyon solar system views mars express

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,…