Pluto is usually the outermost planet in the solar system, and is the only planet that has not been visited by a spacecraft from Earth. This mysterious planet is really a double planet system, since its moon, Charon, is very close to Pluto and about the same size. Pluto's unique orbit causes it to periodically come within the orbit of Neptune. Pluto was the eighth planet from the Sun from ...

Pluto Pluto is the farthest planet from the Sun (usually) and by far the smallest. Pluto is smaller than seven of the solar system's moons (the Moon, Io, Europa, Ganymede, Callisto, Titan and Triton). orbit: 5, 913, 520, 000 km (39.5 AU) from the Sun (average) diameter: 2274 km mass: 1.27e22 kg In Roman mythology, Pluto (Greek: Hades) is the god of the underworld. The planet received this name ...

Although Pluto was discovered in 1930, limited information on the distant planet delayed a realistic understanding of its characteristics. Today Pluto remains the only planet that has not been visited by a spacecraft.

An informative, accurate description of Pluto with pictures ...

Pluto - mostly the furthest out! From ORRERY: the Solar System in action.

NSSDC Photo Gallery: Pluto - A collection of images of the planet Pluto ...

Pluto | Planet Profile | Clearest View

Pluto Clearest View Please select an image above. ...

Describes EVERYTHING on Pluto, the ninth planet ...