The moons are leftover shards from the crack-up that eventually took up orbits around the present-day Pluto. Outside of Charon, the biggest piece, the other four moons are only a few tens of miles ...

People might disagree on whether Pluto should be considered a planet or a dwarf planet but no one disagrees this world is peculiar. Everything about it is so weird, from its heart to the fact that ...

LOS ANGELES -- Pluto may have been kicked out of the planet club, but it has gained yet another companion. Scientists announced Wednesday the discovery of the smallest moon yet around the icy orb, ...

Some 4.5 billion years ago, the dwarf planet Pluto was suddenly joined by a companion. For a brief period – perhaps only hours – they danced as if arm in arm before gently separating, a grand do-si-do ...

Scientists using the Hubble Space Telescope have discovered what they say are two more tiny moons orbiting the planet Pluto, the first evidence yet that any object in the solar system beyond Neptune ...

Pluto is an icy dwarf planet that usually lies beyond the orbit of Neptune in the Kuiper Belt. The dwarf planet is smaller than Earth's Moon, with red snow-capped mountains as tall as the Rockies.

Scientists have discovered carbon dioxide and hydrogen peroxide on the surface of Charon, Pluto's largest moon, offering clues about the origins of the space rock and other celestial objects in the ...

WASHINGTON (Reuters) - Observations by the James Webb Space Telescope are giving scientists a fuller understanding about the composition and evolution of Pluto's moon Charon, the largest moon orbiting ...