In July 2005 scientists announced the discovery of Eris, a dwarf planet larger than Pluto, in this belt
... A Kuiper-belt object like 
Pluto, but slightly less reddish-yellow, Eris is currently visible in the... [DOC] [TLE] New Planet - Division of Geological and Planetary Sciences - Caltech [PAR] Jul 26, 2005 ... Eris, the largest dwarf planet known, was discovered in an ongoing ...