... The Eskimo Nebula from Hubble . ... From the ground, NGC 2392 resembles a person's head surrounded by a parka hood. ... From space, the nebula displays gas clouds so complex they are not fully understood. The Whale Galaxy . ... Prometheus Creating Saturn Ring Streamers . ... What's causing those strange dark streaks in the rings of Saturn? Prometheus. Specifically, an orbital dance involving Saturn's moon Prometheus keeps creating unusual light and dark streamers in the F-Ring of Saturn. ...