Quote Originally Posted by halo
I have never heard of that ceres planet before..
It's the largest asteroid in the solar system, with about one-third the mass of the entire asteroid belt. It is large enough that it has assumed a nearly round shape, which is why they were considering calling it a planet.
Oneironaut Reviewed by Oneironaut on . PLUTO DEMOTED RAGUE, Czech Republic (AP) -- Leading astronomers declared Thursday that Pluto is no longer a planet under historic new guidelines that downsize the solar system from nine planets to eight.After a tumultuous week of clashing over the essence of the cosmos, the International Astronomical Union stripped Pluto of the planetary status it has held since its discovery in 1930. The new definition of what is -- and isn't -- a planet fills a centuries-old black hole for scientists who have labored Rating: 5