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's big moon Charon may have a different origin story than scientists suspected. New research suggests the two bodies engaged in a celestial kiss and tango.

Pluto and its moon Charon's meeting may be traced to a "kiss-and-capture" collision between the two. (CN) — The question of how Pluto captured its moon Charon may have been answered, thanks to new modeling suggesting a “kiss-and-capture” scenario linked the two bodies together.