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The object, 2000 EB173, was found in March using data collected by a 39-inch (1-meter) telescope at the CIDA Observatory in Venezuela. The space rock is estimated at about one-quarter the size of Pluto and joins a club of more than 300 other "trans-Neptunian objects," small bodies that orbit the Sun beyond Neptune... Charles Baltay, a Yale University physicist who headed up the investigation [said] ... "We believe that this thing has been orbiting since the formation of the solar system. So it's the primordial stuff, and it's bright enough that we can study it in detail." The object appears...

Astronomers have found a new member of the Solar System that orbits the Sun beyond Neptune... The object, temporarily named 2000 WR106, was spotted on 28 November. It was picked up by the University of Arizona's Spacewatch team which searches the sky for potentially hazardous objects. Astronomers say that after Pluto, 2000 WR106 is the brightest object of its kind in this particular region of the Solar System... Using the available data, the MPC calculated that the new object was 43 times further from the Sun than the Earth - a distance of about 6.5 billion kilometres (4bn miles). This...