And a personal favorite of mine, Iapetus, which has an equation ridge too, and is black on one side and white on the other. en.wikipedia.org/wiki/Iapetus...

And a personal favorite of mine, Iapetus, which has an equation ridge too, and is black on one side and white on the other.

en.wikipedia.org/wiki/Iapetus...

? TBD

Bluesky post by @colinpeters.bsky.social