A Gnarly New Theory About Saturn’s Rings
The story of a long-lost moon
by Marina Koren
Sep 19, 2022
4 minutes
Saturn has quite the collection of moons, more than any other planet in the solar system. There’s Enceladus, blanketed in ice, with a briny ocean beneath its surface. There’s Iapetus, half of which is dusty and dark, and the other shiny and bright. There are Hyperion, a rocky oval that bears a striking resemblance to a sea sponge, and Pan, tiny and shaped just like a cheese ravioli.
But one moon might be missing.
According to a new study, Saturn once had yet another moon, about the same size as Iapetus, which is the third-largest satellite in Saturn’s collection. The moon orbited the ringed planet for several billion years, minding its own business, doing moon things, until
You’re reading a preview, subscribe to read more.
Start your free 30 days