"New World Rivals Pluto"
http://news.bbc.co.uk/hi/english/sci/tech/newsid_1347000/1347031.stm
Good article about a large Kuiper Belt object discovered last year. Recent coordinated observations put Varuna's diameter at 550 miles (900 KM). This compares to Charon's diameter of 750 miles (1200 KM) and Pluto's diameter of 1500 miles (2400 KM).