STS-77 was the 77th Space Shuttle mission and the 11th mission of the Space Shuttle Endeavour. The mission began from launch pad 39B from Kennedy Space Center, Florida on 19 May 1996 lasting 10 days and 40 minutes and completing 161 revolutions before landing on runway 33.
NASA's flight of shuttle Endeavour was devoted to opening the commercial space frontier. During the flight the crew performed microgravity research aboard the commercially owned and operated SPACEHAB module. The mission also deployed and retrieved the Spartan-207/IAE (Inflatable Antenna Experiment) satellite and rendezvoused with a test satellite. A suite of four technology experiments known as the Technology Experiments for Advancing Missions in Space (TEAMS) also flew in the Shuttle's payload bay.
The SPACEHAB single module carried nearly 1,400 kilograms (3,100 lb) of experiments and support equipment for 12 commercial space product development payloads in the areas of biotechnology, electronic materials, polymers and agriculture as well as several experiments for other NASA payload organizations. One of these, the Commercial Float Zone Facility (CFZF) was developed through international collaboration between the U.S., Canada, and Germany. It heated various samples of electronic and semiconductor material through the float-zone technique. Another facility on SPACEHAB was the Space Experiment Facility (SEF) which grew crystals by vapor diffusion.