. "1946-10-27Z"^^ . "Nagel, Steven R."@en . "1946Z"^^ . "2014-08-21Z"^^ . . . . . "2.59764e+06"^^ . "American astronaut" . "Deceased" . "Steven Ray Nagel (October 27, 1946 \u2013 August 21, 2014), (Col, USAF), was an American astronaut, aeronautical and mechanical engineer, test pilot, and a United States Air Force pilot."@en . . "Steven R. Nagel"@en . . . . "2014Z"^^ .