1.Previous
3.Next

idea, too, is a problematic condition for defining two bodies as "double planets" because planets can "capture" moons through gravitational interaction. For example, the moons of Mars (Phobos and Deimos) are thought to be asteroids captured long ago by Mars. Such a definition would also deem Neptune-Triton a double planet, since Triton was a Kuiper belt

1.Previous
3.Next