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