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Senior Chief Petty Officer Jonathan Myers teaches Command Master Chief April Beldo how to use a marine sextant during a demonstration of celestial navigation aboard the aircraft carrier USS Carl ...

There's no way around it: Celestial navigation using a sextant is a complex and involved process that involves a fair amount of calculating, correcting, referring to tables, knowledge of the heavens ...

NASA mission that embodies the virtues of faster, less expensive access to space has sailed past all major development milestones and is scheduled to be delivered to Cape Canaveral on time for its ...