Cosmic quiver: Saturn's vibrations create spirals in rings
Wednesday, June 12, 2013 - 07:30
in Astronomy & Space
(Phys.org) —Astronomers know that gravity from Saturn's various moons tug at the planet's rings and make spirals in them. But the catalyst for certain spiral patterns has been difficult to pin down. Now, two Cornell astronomers have determined the source: Saturn itself.