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 »

Pluto is 4.67 billion miles away from Earth. At a certain condition, the two celestial bodies are only 2.66 billion miles apart. NASA sent the New Horizons spacecraft on a mission to visit Pluto, and it is expected to re... More » Science Astronomy Planets

Although astronomers have not observed any rings on Pluto, some scientists believe that Pluto may have rings due to the low gravitational pull of its two moons. NASA’s New Horizons mission may provide further information... 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 »

According to NASA, astronomers have discovered at least 146 moons orbiting planets in Earth's solar system. As of 2014, 27 more moons await official confirmation of their discovery. This total does not include the six mo... More »

The dwarf planet Pluto has five satellites or moons. Their names are Nix, Styx, Hydra, Kerberos and Charon. Pluto's largest moon is Charon, which was discovered in 1978. Pluto is about a half size larger than Charon. More » Science Astronomy Planets

Although no one knows exactly what Pluto is made of, most scientists agree that it is between 50 and 70 percent rock, with the remainder being composed of various ices. Pluto’s core is composed of dense rock, while the i... More »