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The U.S. Air Force Went to Space on the North American X-15
The X-15 is the only conventional aircraft that has ever been flown above the “Karman Line” separating the Earth’s atmosphere ...
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How did walking on the Moon affect the Apollo astronauts?
Strange as it may sound, where the astronauts sat (or "sat" – the crew actually stood) in the Apollo Lunar Module may have ...