Cassini has sighted Prometheus and Pandora, the two F-ring-shepherding moons whose unpredictable orbits both fascinate scientists and wreak havoc on the F ring. Prometheus (102 kilometers, or 63 miles ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's Cassini mission to Saturn came to an end on Sept. 15, 2017 when the spacecraft dove into ...

These raw, unprocessed images of Saturn’s moon Dione were taken on Dec. 12, 2011, by NASA’s Cassini spacecraft. Although Cassini obtained more detailed images on previous flybys of Dione, this was the ...

NASA's Cassini spacecraft spied details on the pockmarked surface of Saturn's moon Prometheus (86 kilometers, or 53 miles across) during a moderately close flyby on Dec. 6, 2015. This is one of ...

Cassini continues making loop-de-loops around Saturn, returning tens of thousands of way cool pictures. Like this one: From 1.3 million kilometers (800,000 miles) away – 3 times as far as the Moon is ...

A pair of moons, Pandora and Prometheus, continue their shepherding duties near Saturn’s thin F ring. Pandora (81 kilometers, or 50 miles across) orbits outside the F ring and, with the inner shepherd ...