Pluto is the well known 9th planets in the solar system. According to the latest discovery, it has 3 moons now.
Now, the 2 latest discovered moons by Hubble Space Telescope on May 2005 have been named as Nix and Hydra. Before, they were originally called S/2005 P1 and S/2005 P2.
Left: The 2 small dots on the picture are Nix and Hydra.
By the way, IAU plans to publish an official defination of “planet†in early September, ruling on whether to call Pluto a planet or a Kuiper Belt Object (KBO). Pluto’s status as a planet has been fragile since the discoveries of KBOs Quaoar, Sedna, and 2003UB313 (informally named “Xenaâ€), which is slightly larger than Pluto. The IAU will discuss the issue at its August meeting in Prague.
