Solar System simulation animation: A newfound planet in our solar system, called 2003UB313, The planet is seen moving across the outer field of the solar system.\r\n\r\nScientists did not discover the object until Jan. 8, 2005. The planet catalogued as 2003UB313 at the lonely outer fringes of our solar system. Our Sun can be seen in the distance. The new planet, which is yet to be formally named, is at least as big as Pluto and about three times farther away from the Sun than Pluto. It is very cold and dark. The planet was discovered by the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif., on Jan. 8, 2005. Here are the top ten names for the 10th planet: 10. Loki \r\n9. Cerberus \r\n8. Nibiru\r\n7. Titan\r\n6. Bob 5.Rupert 4. Xena 3. Galileo 2. Peace (or its Latin root, Pax)2. Peace (or its Latin root, Pax) 1. Persephone (Greek) or Proserpina (Roman)