Change The Textbooks

From SpaceFlightNow.com. (Pops)

In case you haven't heard, there is another planet farther out than Pluto. Roughly 97 A.U. from the sun (1 A.U. = disance from the sun to earth).
The newest discovery is that there is also a moon orbiting that planet (The blob in the 3 o'clock position):

So we have at least 10 planets in our solar system.
For now, the planet is code-named Xena, and the moon is code-named Gabrielle.

Spiffy!