Last updated on April 18, 2014 at 21:21 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).