. . "Brian Duffy (born June 20, 1953, Boston, Massachusetts) is a retired U.S. Air Force colonel and a former NASA astronaut. He flew aboard four Space Shuttle missions."@en . "USAFA, B.S. 1975"@en . "Brian Duffy"@en . . . . . . "30"^^ . . "USC, M.S. 1981"@en . . . . . "American"@en . "Colonel, USAF"@en . . . "1953-06-20"^^ . . . . . . . . . . . . . "Test Pilot"@en . "Brian Duffy (astronaut)"@en . "Brian Duffy (born June 20, 1953, Boston, Massachusetts) is a retired U.S. Air Force colonel and a former NASA astronaut. He flew aboard four Space Shuttle missions."@en . . . . . "Retired"@en . . . "3519420.0"^^ . . . . . "Boston, Massachusetts, U.S."@en . "1985"^^ . .