Jupiter Has Rings

Naturally, when people think about ring systems, they picture Saturn. In actuality, however, both Uranus and Jupiter have separate ring systems. Due to their extreme faintness, Jupiter's were the third set to be found (after the other two). The three main segments of Jupiter's rings include an inner torus of particles called the halo, the main ring that is quite bright, and an outer gossamer ring.

It is generally accepted that the material in these rings came from debris that its moons ejected after being hit by meteorite impacts. The moons of Thebe and Amalthea are assumed to form the two separate parts of the dusty gossamer ring, while the moons of Adrastea and Metis are thought to produce the material that makes up the main ring.

Due to Jupiter's tremendous gravitational pull, this material went into orbit around Jupiter (rather than back to their individual moons). As some of the ring's material veers toward Jupiter and new material is contributed by additional impacts, the ring is regularly both depleted and replenished.