@astropic

The unique "scalloped" look along the edges of Triton’s southern polar cap is one of its most fascinating geological mysteries. While we only have the data from Voyager 2's 1989 flyby, planetary scientists attribute those wavy, scalloped margins to a combination of two major factors: seasonal sublimation and topographic "embaying."

Here is how that alien process actually works down on the ground:

#Triton
#scalloping
#sublimation
#embaying