A worker arrives on the level of the fixed service structure with a cart containing the extravehicular mobility units.

A worker on Launch Pad 39B arrives on the 195-foot level of the fixed service structure with a cart containing the extravehicular mobility units (or spacewalk suits) to be used on mission STS-116. The suits will be stored inside Space Shuttle Discovery. Launch of Discovery is scheduled for 9:35 p.m. Dec. 7. The crew will deliver the P5 integrated truss to the International Space Station and install it during one or more extravehicular activities. Photo credit: NASA/Jack Pfaller