The defunct Upper Atmospheric Research Satellite (UARS) reentered the atmosphere at 12:01 A.M. Eastern time (0401 GMT) on Saturday, falling into the Pacific at 14.1 degrees south latitude and 189.8 degrees east longitude...
Atlantis is on its way home for a final landing at NASA's Kennedy Space Center in Florida
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One of the architects of the idea that “firewalls” of high-energy particles border black holes will answer readers’ questions in a video chat
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