Ringing rings reveal Saturn’s innards
Vibrations induced by planet send signals about interior’s structure
![Saturn](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/04/ag_saturn_free.jpg?fit=860%2C460&ssl=1)
RINGED GIANT Saturn’s rings cast a shadow on the planet in a 2012 Cassini spacecraft photo. Subtle vibrations in those rings are helping scientists explore the structure of the gas giant’s interior.
NASA/JPL-Caltech/Space Science Institute