One of Bill Shepherd's major contributions has been his leadership on the ISS. π
He was in charge of the first crew, which included astronauts from the U.S., Russia, and Germany. They lived in space for about 4 months, working on many experiments to help us learn about living in space. Shepherd helped to build, operate, and maintain the ISS, which is crucial for future space missions. He has also contributed to our understanding of how humans function in outer space, helping to pave the way for future exploration!