STS-100 Mission Specialist Chris A. Hadfield, who is with the Canadian Space Agency, pauses for the photographer while looking over part of the mission payload, the Canadian robotic arm (SSRMS). The SSRMS is capable of handling large payloads and assisting with docking the Space Shuttle. It is crucial to the continued assembly of the International Space Station. Hadfield and the rest of the crew are at KSC to complete Terminal Countdown Demonstration Test activities that were postponed earlier. The TCDT includes emergency escape training, payload bay walkdown, and a simulated launch countdown. The primary payload also includes Multi-Purpose Logistics Module, Raffaello. Launch of Space Shuttle Endeavour on mission STS-100 is targeted for April 19 at 2:41 p.m. EDT from Launch Pad 39A