STS-46Space Shuttle Atlantis is launched on an eight-day mission to deploy two experiment packages developed jointly with the European and Italian space agencies. (The mission is extended by a day to accomodate more experiments.) Aboard Atlantis for her 12th flight are Commander Loren Shriver, Pilot Andrew Allen, mission specialists Jeffrey Hoffman, Franklin Chang-Diaz, Claude Nicollier and Marsha Ivins, and payload specialist Franco Malerba.