Suppose You Could Float in Space Just a Few Meters

Multiple Choice

Suppose you could float in space just a few meters above Saturn's rings. What would you see as you looked down on the rings?

A) countless icy particles, ranging in size from dust grains to large boulders
B) a solid, shiny surface, looking much like a piece of a DVD but a lot bigger
C) dozens of large "moonlets" made of metal and rock, each a few kilometers across
D) Nothing-up close, the rings would be so completely invisible that you'd have no way to know they are there. They can be seen only from a distance.