Shadow Dancing
Credit: NASA/JPL-Caltech/Space Science Institute
Saturn’s moon Daphnis makes waves in the Keeler Gap of the planet’s A ring in this view taken around the time of Saturn’s August 2009 equinox. Shadows cast by Daphnis fall on the A ring, just below the center of the image. The image was taken in visible light on Aug. 16, 2009. The view was acquired at a distance of approximately 1.3 million miles (2.1 million kilometers) from Saturn.
photo negatives of an eclipse
This astonishing image was taken on June 13, 2012 by the Cassini spacecraft when it was 2.6 million kilometers (1.6 million miles) from the ringed planet — that’s more then six times farther than the Moon is from the Earth.
Image credit: NASA/JPL/Space Science Institute.
Million-Ring Circus
1. RINGS FROM AFAR
Measuring 175,000 miles wide but as little as 30 feet thick, Saturn’s rings contain debris of varying ages and composition, all revolving at different speeds.
2. THREE MOONS
Titan and Dione, along with speck-sized Prometheus appear in rare alignment. Tiny so-called shepherd moons help shape the rings and prevent them from dispersing.
3. TITAN
Concentric rings wind in front of Satrun’s biggest moon, Titan, with tiny Janus in teh foreground. The rings are so massive that they have their own atmosphere, separate from Saturn’s. Cassini found evidence of oxygen all around the icy rings.
4. RINGS CLOSE UP