Hydra and Nix join our Solar System

Thanks to the great Dr. Phil Plait of Bad Astronomy I caught the cool news about today being the day that Pluto’s two recently confirmed satellites receiving their official names by the International Astronomical Union. 
 
The two additional satellites were discovered last Fall with the Hubble space telescope. Are they moons? With how small Pluto is estimated to be, they’re probably chunks of rock orbiting Pluto like Deimos and Phobos do around Mars. When the New Horizons probe arrives in nine years, we’ll have a better idea (right now New Horizons should be slingshotting off Jupiter in eight months).