No, not the warrior princess. It's our new planet! It's only been tentatively named Xena (or 2003 UB313), but the new "10th rock from the sun" was discovered by astronomers in California. It's approximately a quarter the size of the Earth, but 3 times as far out as Pluto (its orbit around the sun takes 560 years). Astronomers couldn't find it until now because its orbit is tilted at a 45 degree angle with respect to all the other planetary orbits in our Solar System.
For your convenience, I have devised a new pneumonic device to remember all 10 planets in our solar system: "My Very Educated Mother Just Served Us Nine Pizzas Xylophone."
No comments:
Post a Comment