47th Space Shuttle Mission1st Flight of Endeavour Crew:Daniel C. Brandenstein, CommanderKevin P. Chilton, PilotBruce E. Melnick, Mission SpecialistThomas D. Akers, Mission SpecialistRichard J. Hieb, Mission SpecialistKathryn C. Thornton, Mission SpecialistPierre J. Thuot, Mission Specialist In addition to being the first flight of Endeavour, other important "firsts" occurred during the mission. For the first time, four spacewalks were conducted during a Space Shuttle mission. Also for the first time, three astronauts participated in a single spacewalk. In addition, astronauts attached a live rocket motor to an orbiting satellite for the first time.