STS-120 Mission Specialist Scott Parazynski assesses his repair work as the solar array is fully deployed during the mission's fourth EVA.
There may be no greater image that represents exploration than that of a human being in a spacesuit—a spaceship for one. This narrated video covers important lessons learned through the years about Extravehicular Activities, or EVAs. Stories cover the evolution of EVA during the shuttle era, satellite rescue missions, the buildup to the “wall of EVA” for the International Space Station, station assembly and maintenance and important lessons to keep in mind as we strive for future human exploration of space. Hear from NASA team members who took part in making this complex task a reality, enabling some of the most impressive and daring achievements in the history of human spaceflight.