Pluto was discovered in 1930 and is the second-largest known dwarf planet, behind Eris. It was originally considered to be the ninth planet in the solar system, but was reclassified as a dwarf planet in 2006. It is compo... More »

www.reference.com Science Astronomy

One surprising fact about the sun is that the poles and the equator rotate at different rates. The equator takes 26.8 days to rotate, while the poles take 36 days. This is because the sun is not a solid body but a ball o... More »

www.reference.com Science Astronomy Our Sun

Pluto is a dwarf planet in the area of the Kuiper belt, which is an area with many dwarf planets, according to the National Aeronautics and Space Administration (NASA). The dwarf planet is after Neptune in the planetary ... More »

Pluto became a dwarf planet in 2006. Upon being stripped of its title as a planet, Pluto joined two other celestial bodies, called Eris and Ceres, in the category of dwarf planets. The decision to reclassify the former p... More »

Pluto is a dwarf planet in the area of the Kuiper belt, which is an area with many dwarf planets, according to the National Aeronautics and Space Administration (NASA). The dwarf planet is after Neptune in the planetary ... More »

Pluto does not have a weight, because weight is a force exerted by one gravitational body on another gravitational body. The dwarf planet Pluto has a mass of 1.31 x 10^22 kilograms, and it's weight would depend on the ac... More »

As of 2014, Pluto has five recognized moons. The largest moon, Charon, was discovered in 1978, followed by the discoveries of Nix and Hydra in 2005, Kerberos in 2011 and Styx in 2012. Pluto may have as many as 10 moons. More »