The rings are fairly shiny despite being bombarded by dust, indicating that they haven’t been around for very long.
The dwarf planet’s ring makes astronomers question whether a long-held theory about ring and moon formation needs tweaking.
A cloud of dust traces the innermost planet’s orbital path. By all accounts, it shouldn’t be there.
Named Chrysalis, the moon could have disintegrated during a close encounter with the gas giant roughly 100 million years ago.
Planetary rings can act as seismometers that respond to changes deep within a planet.
The Cassini spacecraft observed spiral density waves in the rings of Saturn which can be used to probe its interior structure and rotation.