Fans in non-cryptic terrain: Sublimation at work! (Sublimation is the process of going from a solid directly to a gaseous form, so the darker material under the ground is exposed rapidly onto the lighter surface).
Beautiful Mars series.
Fans in non-cryptic terrain: Sublimation at work! (Sublimation is the process of going from a solid directly to a gaseous form, so the darker material under the ground is exposed rapidly onto the lighter surface).
Beautiful Mars series.