Overview proteus is one of the largest of neptune's known moons, although it is not as big as triton It’s the only planet we know of inhabited entirely by robots. Proteus orbits neptune about every 27 hours.
Scientists think triton is a kuiper belt object captured by neptune's gravity millions of years ago Mars is the fourth planet from the sun, and the seventh largest It shares many similarities with pluto, the best known world of the kuiper belt
Moons about moons by destination earth (1) mars (2) jupiter (95) saturn (83) uranus (27) neptune (14) pluto (5) asteroids, comets & meteors about asteroids, comets & meteors by type You are using an outdated browser Please upgrade your browser to improve your experience. As uranus and neptune drifted farther outward, they passed through the dense disk of small, icy bodies left over after the giant planets formed
Neptune's orbit was the farthest out, and its gravity bent the paths of countless icy bodies inward toward the other giants. Dwarf planets such as pluto And millions of asteroids, comets, and meteoroids. In 1943, astronomer kenneth edgeworth hypothesized that many small, icy bodies exist in a disc in the region beyond neptune, having condensed from widely spaced ancient material, and that from time to time one of them visits the inner solar system.
