Pluto - 2 New Moons and Looming Relegation.

In school I learned that Pluto was the ninth Planet from the Sun.

Pluto has a moon, or partner, named Charon. Charon doesn't orbit Pluto, they both orbit a center of gravity between them.

Now, a pair of small moons that NASA's Hubble Space Telescope discovered orbiting Pluto have official names: Nix and Hydra. Photographed by Hubble in 2005, Nix and Hydra are roughly 5,000 times fainter than Pluto and are about two to three times farther from Pluto than its large moon, Charon, which was discovered in 1978.

Right now there is a Nasa spacecraft on the way to Pluto(link), and by the time it get there, Pluto will no longer be considered a planet.

Pluto has more in common with Kupier Belt Objects than the other planets and scientists keep finding more and more objects that resemble Pluto. We can't start calling all of these objects "planets" even if they are named after Zena the Warrior Princess. (link) (link). Sooner or later Pluto will be relegated from planethood.

My kids will not learn that Pluto is a planet.