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 CAPE CANAVERAL, Fla. (AP) - The planned weekend launch of a spacecraft to explore two of the solar system's largest asteroids was delayed to the middle of the month because of problems with a tracking ship and aircraft.
NASA had set Monday afternoon as a new launch time for the Dawn spacecraft, which will embark on a years-long journey to the asteroids Vesta and Ceres, which lie between Mars and Jupiter.
Late Friday, NASA officials announced the spacecraft would launch July 15, instead.
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