Canyon system from above
The Mars Express Orbiter snapped images of the Valles Marineris, a canyon system about 10 times longer, 20 times wider, and five times deeper than Earth’s Grand Canyon. It’s hard to fathom the scale of such a structure, but the image—taken from miles above the Martian surface—shows that the planet’s exterior is much more topographically dynamic than some rover images would leave you to believe. It’s all about perspective.
