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On Selma's 50th anniversary, Obama will look to the future

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NASA's Dawn spacecraft is first to arrive at dwarf planet
NASA's Dawn spacecraft is first to arrive at dwarf planet

The signal arrived at 5:36 a.m. PST on Friday: NASA's Dawn spacecraft had successfully entered into orbit around Ceres, fulfilling the first NASA mission to visit a dwarf planet, and the first to visit two distinct bodies in the solar system.  "We feel exhilarated," Chris Russell, principal investigator of the Dawn mission at UCLA, said in a statement. "We have much to do over the next year and a half, but we are now on station with ample reserves, and a robust plan to obtain our science objectives." Ceres is the largest object in the asteroid belt between Mars and Jupiter and the final stop on Dawn's journey in the solar system. The 4.5-foot-long...

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