My first inclination was that the photos--all by Christopher Jonassen and available in his artist book, "Devour"--were of some lesser-known planets or a few of Jupiter's 64 moons. Maybe nail heads?

But no! They are actually the bottoms of old, worn-out skillets and frying pans.

Pretty neat, huh?

Bonus: Over at Reddit, Buffalo_Dave created the below "Frying Pan Galaxy" image (full-size version).