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18-Mar-04 | Spitzer finds Oort cloud object

NASA has announced the discovery of the furthest object known in the solar system, now named Sedna after the Inuit goddess of the ocean. With the help of the Spitzer Space Telescope, scientists determined it must be no more than about 1,000 miles in diameter. Larger than an asteroid and smaller than Pluto, the “planetoid” defies easy classification and may be the first known member of the long-hypothesized Oort Cloud. (NASA Press Release, 15-Mar-04)


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