STS-116 crew members (at right) are briefed on the cameras they will be using during the mission. The astronauts are, from left, Mission Specialists Robert Curbeam and Christer Fugelsang and Pilot William Oefelein. The crew is at KSC for a Crew Equipment Interface Test. Mission crews make frequent trips to the Kennedy Space Center to become familiar with the equipment and payloads they will be using. STS-116 will be mission No. 20 to the International Space Station and construction flight 12A.1. The mission payload is the SPACEHAB module, the P5 integrated truss structure and other key components. Launch is scheduled for no earlier than Dec. 7. Photo credit: NASA/Kim Shiflett