Unlike Earth, where the Moon orbits the planet, Pluto and Charon orbit each other, forming a binary system that is more similar to the Earth-moon system than any other moon in the solar system.

Pluto and its largest moon Charon could have come together via a 10-hour “kiss-and-capture” encounter after a grazing collision

A new study proposes a 'kiss and capture' collision theory to explain the origins of Charon, Pluto's largest moon, shedding light on the dwarf planet's mysterious past.