It's all to do with the direction of the lighting. Viewed the other way up, it would look like a crater. It's hard to tell just from this image.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
