NASA Space Flight Medal
Gardner was awarded the Defense Superior Service Medal (1984, 1989, 1990); the Distinguished Flying Cross (1989); the Meritorious Unit Commendation (1976); the Humanitarian Service Medal (1979) and the Sea Service Deployment Ribbon (1984). His other honors included the NASA Space Flight Medal (1983 and 1984); the Master Space Badge (1989); and the Lloyd's of London Meritorious Service Medal (1984).