There is no concrete proof that Pluto has rings. NASA scientists think the dwarf planet may have rings, but until observation of the far away planet begins in 2015, scientists can only speculate. More »

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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 »

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 »

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 »

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 »

The planet Pluto is named after Pluto, the god of the underworld in Greek and Roman mythology. The name was suggested by a young girl, Venetia Burney Phair, in 1930 when she heard the news that a new planet had been disc... More »

In 2006, the International Astronomical Union redefined the criteria for what qualifies as a planet, causing Pluto to lose its designation as such. As of 2014, Pluto is considered one of five dwarf planets, with the othe... More »