Reull Vallis by U.S. Geological Survey

Reull Vallis, 2014

U.S. Geological Survey

This geological map of the surface of Mars is an intriguing, textured composition of round, bullseye craters set into irregularly-shaped masses of color: pale peach, ochre, chartreuse, lemon yellow. The craters’ raised edges give us a visceral sense of the hollows’ depth and the past impacts that created them. A meandering section of bright blue resembles a river, though we all know there aren’t any rivers on Mars, and a blue area at the bottom looks like a sea.

From the playlist
United States Geological Survey