Two images of Saturn, side-by-side. In the top image, where Saturn's rings are edge-on, they appear as a black line across the planet. Saturn's large moon Titan appears as an orange sphere above the rings on the left side, casting a shadow onto Saturn's lower-left, and four more smaller moons are visible at the right edge of Saturn's rings. In the bottom image, the rings aren't quite edge-on and more easily visible. One moon is above the rings on the left side, a second (much smaller) moon is at图：NASA · NASA Image and Media Guidelines
