Joseph Albert "Joe" Walker (20 February 1921--8 June 1966) was an American NASA test pilot, who in 1963, made two X-15 Experimental rocket aircraft flights beyond the altitude of 100 kilometers-at the edge of outer space.
Joseph Albert "Joe" Walker (20 February 1921--8 June 1966) was an American NASA test pilot. An American NASA test pilot in 1963, made two X-15 Experimental rocket aircraft flights beyond the altitude of 100 kilometers-at the edge of outer space.