SPACEPHOTOS

(04/23/2002) -- STS-111 Mission Specialist Franklin Chang-Diaz (left) tries another maneuver on the replacement pitch roll joint for the SSRMS (Canadarm 2). The joint will be installed during the mission to the International Space Station. Part of the payload on mission STS-111 is the Mobile Base System (MBS), which will be installed on the Mobile Transporter to complete the Canadian Mobile Servicing System, or MSS. The mechanical arm will then have the capability to 'inchworm' from the U.S. Lab Destiny to the MSS and travel along the truss to work sites. STS-111 is the second utilization flight (UF-2) to the Space Station and will also carry the Expedition 5 crew to replace Expedition 4. Launch is scheduled for May 30, 2002