Twelfth Atlantis flight. Deployed ESA's European Retrievable Carrier (EURECA), a platform placed in orbit for 6 months offering conventional services to experimenters. Tested Tethered Satellite System (TSS-1), a joint program between the United States and Italy. Landed at Kennedy Space Center, FL. on August 8, 1992. Mission Duration: 191 hours 16 minutes 7 seconds.

Launch Date: July 31, 1992 Launch Vehicle: Atlantis Crew: Commander: Loren J. Shriver, Pilot:Andrew M. Allen, Mission Specialists:Jeffrey A. Hoffman, Franklin R. Chang-Diaz, Claude Nicollier, Martha S. Ivins, Payload Specialists: Franco Malerba