Skylab-3 was the second marned mission in the skylab project. The crew spent 59 days in orbit. In this photo, Astronaut Jack Lousma deploys the Twin Pole Sun Shield created by Marshall Space Flight Center team members to replace the micrometeoroid shield, a thin protective cylinder surrounding the workshop protecting it from tiny space particles and the sun's scorching heat. The shield was damaged during the Skylab-2 mission.
