Moons Are Born From Planetary Disks

Before moons become celestial bodies, they exist as swirling rings of dust and gas orbiting a planet. These cosmic nurseries serve as the raw material construction sites for entire moon systems.

Imagine a miniature version of the solar system forming right around a single planet. These circumplanetary disks act like assembly lines where gravity pulls scattered rock and gas together to craft new satellites. Without these rings, massive moons like Jupiter’s Galilean group might never have formed. It is a spectacular reminder that even planets create their own complex neighborhoods.