In the second of the this two part interview, former NASA astronaut for the first SkyLab mission, Joseph Kerwin, talked about experimenting with weightlessness, the mission launch and docking on SkyLab, as well as how work in Skylab influenced the development of the International Space Station. Kerwin’s mission was to repair SkyLab and conduct scientific experiments in space, including tests in weightlessness. This interview was part of the Johnson Space Center’s Oral History Project.