Where is Planet X?
	There is another planet beyond the orbit of Neptune, and scientists say it's not Pluto. Ever wondered what the X in the name stands for? The X is the equivalent for unknown, opposed to the general believe that it represents the Roman numeral for 10. And another thing... how do you discover a planet that has never been observed? Believe it or not, the planet Pluto was actually discovered while astronomers were looking for Planet X, but ... [read more >>]
	16 January 2008, 06:57GMT | (c) 2008 Softpedia