This is probably a stupid and basic question, but I’m still learning how to use Space engine and when I went to the universe map then disabled procedural objects it looked like two cones. I’m guessing the poles are the cause of the dark spots, but I can’t find much on google. Why is it like this?

This is probably a stupid and basic question, but I’m still learning how to use Space engine and when I went to the universe map then disabled procedural objects it looked like two cones. I’m guessing the poles are the cause of the dark spots, but I can’t find much on google. Why is it like this?