During the mission the crew deployed the communications satellites, conducted two six-hour spacewalks to demonstrate space station construction techniques with the EASE/ACCESS experiments, operated the Continuous Flow Electrophoresis (CRFES) experiment for McDonnell Douglas and a Getaway Special (GAS) container for Telesat, Canada, conducted several Mexican Payload Specialists Experiments for the Mexican Government and tested the Orbiter Experiments Digital Autopilot (OEX DAP).