Starship Asterisk*

. . . or any other planet or planet's moon, for that matter: What, exactly comprises the "dirt" on these. That word is used in the explanation of today's picture. What is said "dirt" made of? What are the components of "dirt" on Mars? How does it differ from that on Ear...

I once worked on the Pine Ridge reservation in South Dakota. Such "optical illusions" as this were frequent occurances there, and were called "sundogs". I've also seen sundogs at sunset, on the Oregon coast.

Sarah