On other celestial bodies

The team that discovered ‘Xena’, as they are still insisting on calling the so-called “10th planet” *ahem*, have announced that it has an orbiting companion, called Gabrielle, of course. According to Professor Brown – “Having a moon is just inherently cool – and it is something that most self-respecting planets have, so it is good to see that this one does, too.” Ignoring the implied slight to Mercury.. and Venus.. I’ll just point out that Prof Brown’s other recent discovery, the less glamorously named 2003 EL61 also has a moon.. and is also not a planet.