Our Tenth Planet... it has a Moon!
http://www.sciencedaily.com/releases/20 ... 075911.htm
sciencedaily wrote:The newly discovered 10th planet, 2003 UB313, is looking more and more like one of the solar system's major players. It has the heft of a real planet (latest estimates put it at about 20 percent larger than Pluto), a catchy code name (Xena, after the TV warrior princess), and a Guinness Book-ish record of its own (at about 97 astronomical units-or 9 billion miles from the sun-it is the solar system's farthest detected object). And, astronomers from the California Institute of Technology and their colleagues have now discovered, it has a moon.
I've been skeptical about calling Pluto a real planet, but if a similar mass beyond it has a moon - how can it really be argued? Considering the Kuiper Belt - there could very well be a couple more planets yet to be discovered.
One thing's for sure - it screws up the old acronym rhyme! I guess it could be changed to..."My Very Energetic Mother Just Showed Us Nine Pretty Xanthiums" or something... easier to just memorize the damn planet names!
ADMIN 5/14/10: Changed subject title to reflect the wider range of discussion in this thread.