Image: Prometheus and the Ghostly F Ring
Tuesday, August 8, 2017 - 06:02
in Astronomy & Space
The thin sliver of Saturn's moon Prometheus lurks near ghostly structures in Saturn's narrow F ring in this view from NASA's Cassini spacecraft. Many of the narrow ring's faint and wispy features result from its gravitational interactions with Prometheus (86 kilometers, or 53 miles across).