No one knows. Certainly before life existed on earth
1610
Galileo discovered Saturn's Rings in 1610
The rings of Saturn orbits Saturn
The tidal forces from Saturn's gravity are to strong for the rings to form a moon.
THe Saturn Rings are a "Belt" of asteroids that have all found a similar orbit around Saturn. They are made after a collection of asteroids fall into the same orbit, and when observed from a distance, look like the classic "rings".
Saturn is the planet with the most rings.
There are three theories on how Saturn got its rings: 1. Gravitational disruption of satellites: Saturn's gravitational pull tears anything apart that gets too close, and the fragments become part of the ring system. 2. Fragmentation of moons: moons of Saturn collide with each other and other bolides and break up, the fragments of which form Saturn's rings. 3. Accretionary remnant: rings are formed from primordial debris that was not accreted to form Saturn initially.
Galileo discovered the rings of Saturn in 1610.
There are three theories on how Saturn got its rings: 1. Gravitational disruption of satellites: Saturn's gravitational pull tears anything apart that gets too close, and the fragments become part of the ring system. 2. Fragmentation of moons: moons of Saturn collide with each other and other bolides and break up, the fragments of which form Saturn's rings. 3. Accretionary remnant: rings are formed from primordial debris that was not accreted to form Saturn initially.
There are three theories on how Saturn got its rings: 1. Gravitational disruption of satellites: Saturn's gravitational pull tears anything apart that gets too close, and the fragments become part of the ring system. 2. Fragmentation of moons: moons of Saturn collide with each other and other bolides and break up, the fragments of which form Saturn's rings. 3. Accretionary remnant: rings are formed from primordial debris that was not accreted to form Saturn initially.
Saturn's rings
Saturn has an extensive system of rings. Giovanni Domenico Cassini discovered the division between Saturn's rings in 1675. He also discovered four of Saturn's moons.