A PHOTO: Prometheus and the Ghostly F Ring Author AlexPublished on August 7, 2017 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. via NASA http://ift.tt/2wAP7cL Share this:MastodonEmailLike this:Like Loading... Related posts: A PHOTO: James Webb Space Telescope Mirror Seen in Full Bloom A PHOTO: Faint F Ring and Prometheus A PHOTO: NASA’s Webb Telescope Ghostly ‘Lights Out’ Inspection A PHOTO: Ring Details on Display