Dr. Michael Brown, associate professor of planetary astronomy, California Institute of Technology, Pasadena, California, presented his discovery and major findings of the most distant object ever detected orbiting the Sun, at a press media teleconference held on the 29 th July. He and his colleagues made the observations as part of a NASA-funded research project.
With the current temporary name 2003UB313, the KBO was discovered in an ongoing survey at Palomar Observatory's Samuel Oschin telescope by astronomers Mike Brown (Caltech), Chad Trujillo (Gemini Observatory), and David Rabinowitz ( Yale University). They have proposed a name (lila) to the IAU and will announce it when that name is accepted.
And It is bigger than Pluto!!!
This object is at least the size of Pluto and likely a bit larger.