By ANDREW BRIDGES, AP Science Writer
LOS ANGELES – It is a frozen world more than 8 billion miles from Earth and believed to be the farthest known object within our solar system.
NASA planned a Monday press conference to offer more details about Sedna, a planetoid between 800 miles and 1,100 miles in diameter, or about three-quarters the size of Pluto.
Named for the Inuit goddess who created the sea creatures of the Arctic, Sedna lies more than three times farther from the sun than Pluto. It was discovered in November.
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