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Last updated on May 18, 2013 at 13:20 EDT
Highway of Stars
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Highway of Stars

June 12, 2006
Like a celestial arrow spanning roughly one-third of the northern sky, this artist's concept of a newly discovered stream of ancient stars passes just over the head of the constellation Leo (on the right), before plunging through the heart of the Great Bear, or Big Dipper constellation (to the left).