future spacecraft to the extreme conditions outside the space station. The materials are being evaluated for the effects of atomic oxygen, ultraviolet, direct sunlight, radiation, and extremes of heat and cold. The experimental findings will benefit better understanding, development and to test new materials suitable to better withstand the rigors of space environments with applications in the design of future spacecraft. MISSE-7 is composed of two suitcase-sized Passive Experiment Containers (PECs), identified as MISSE 7A and MISSE 7B. Once installed in the exterior of ISS by space walking astronauts, the PECs are opened. The orientation of MISSE 7A will be space facing/Earth facing while MISSE 7B will face forward/backward relative to the ISS orbit. Both MISSE 7A and MISSE 7B contain active and passive experiments. Passive experiments are designed for pre- and post-flight evaluation in ground-based laboratories. S-band Antenna Sub-Assembly (SASA) package Atlantis delivered a repaired S-band Antenna Sub-Assembly (SASA) to the ISS which was returned to Earth during the STS-120 mission in October 2007. SASA is a space station antenna assembly consisting of Assembly Contingency Radio Frequency Group (RFG or ACRFG) SASA Boom Avionics Wire Harness Major functions of the ACRFG are to transmit/receive radio signals to/from the transponder, amplification of signals to a power level necessary to be acquired by a Tracking Data and Relay Satellite and to broadcast/receive signals through the selected antenna. The SASA boom assembly consists of a mast, an extra-vehicular activity (EVA) handle, a harness, a connector panel, a mounting surface for the RFG and a baseplate fitting. The fitting will serve as the structural interface for mounting the SASA to the Zenith 1 truss on the ISS. The Avionics Wire Harness installed on the SASA Boom provides operational and heater power to the RFG. Another function of the harness is to send command/status/RF signals to and from RFG. SASA package was attached to the sidewall inside the payload bay of Atlantis during the ascent to the ISS. It was transferred from the payload bay to the Zenith 1 truss for installation as a spare by spacewalkers Foreman and Satcher performing EVA 1 on November 19. SpaceX COTS UHF Communication Unit and Crew Command Panel In a middeck stowage locker, Atlantis carried the Commercial Orbital Transportation Services (COTS) Ultra High Frequency (UHF) Communication Unit (CUCU) developed by Space Exploration Technologies (SpaceX) in collaboration with NASA to the ISS. It will be integrated on the