It may not be a planet any more, but it does have its share of moons:

Hubble spies fourth moon at Pluto

By Jonathan AmosScience correspondent, BBC News

The Hubble Space Telecope observations of P4 were made in June and July

Astronomers using the Hubble Space Telescope have identified another moon around the dwarf planet Pluto.

It becomes the fourth object known to be circling the distant world after the long-recognised Charon and recently observed Nix and Hydra satellites.

Scientists are temporarily calling the new moon P4 and estimate its diameter to be 13 to 34 km (of 8 to 21 miles).

Pluto, controversially demoted from full planet status in 2006, will be the target of a big space mission in 2015.

Nasa’s New Horizons probe is due to fly past the icy world and should get a good look at the moons, also.