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(Representação Artística)

Pluto is a dwarf planet that is more than 40 million miles from the sun, in the heart of the Kuiper Belt, a vast region of many icy bodies. In 1978, Charon was discovered, and it is still the only confirmed satellite of Pluto. But if the Hubble’s images confirm it, Pluto has not one but three satellites and would, thus, become the first body in the Kuiper Belt having more than one satellite. Until recently these moons had only catalog names: S/2005P1 and S/2005P2 but have already been baptized with the names of Hydra and Nix. These names are not permanent, until the IAU confirm the orbits.
The Advanced Camera Monitoring Program Hubble observed these satellites for the first time on 15 May 2005, but only in February 2010 have obtained the first orbital confirmations.