National Interest on MSN12h
The U.S. Air Force Went to Space on the North American X-15The X-15 is the only conventional aircraft that has ever been flown above the “Karman Line” separating the Earth’s atmosphere from space.
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Blue Origin mimics moon gravity on 1st-of-its-kind New Shepard research rocket launch (video)Jeff Bezos' spaceflight company Blue Origin simulated lunar gravity conditions today (Feb. 4) during the 29th launch of its ...
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