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NASA-Funded Scientists Discover Tenth Planet

published by NASA
Jul 31, 2005

A time-lapse image of a newfound planet in our solar system, called 2003UB313, was taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif.

http://www.jpl.nasa.gov/news/news.cfm?release=2005-126