#TBT to an Extravehicular Activity (EVA) conducted in part of the Materials International Space Station Experiment (MISSE), the first experiment mounted externally on the International Space Station (ISS), to investigate the effects of long-term exposure of materials to the harsh space environment.This image is from the STS-105 space shuttle mission. Credit: NASA/ISS #iss #explore #throwbackthursday #2009 #STS105 #space #explore #journeytomars