In 1973, the first Skylab crew returned to Earth following a successful 28-day mission. During its launch in May 1973, Skylab -- America's first space station -- suffered damage to its sunshield, causing the orbiting workshop to overheat. Engineers and scientists from NASA_Marshall worked to develop an emergency repair procedure that launched just 11 days after the incident. Here, a crew member practices the repair in Marshall's Neutral Buoyancy Simulator. Over the course of Skylab’s human occupation from May 25, 1973, to February 8, 1974, three crews visited the space station, carried out 270 scientific and technical investigations and logged a combined 171 days on orbit. Credit: NASA #NASA #history #skylab #blackandwhite #astronaut