ELC2 also carried MISSE-7, an experiment that will expose a variety of materials and coatings being considered for 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.
ELC2 also carried MISSE-7, an experiment that will expose a variety of materials and coatings being considered for 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.
STS-129