The astronaut is stepping away from NASA shortly after returning from a troubled test flight that left him aboard the ISS months longer than expected.

Astronaut and University of Tennessee graduate Barry "Butch" Wilmore has announced his retirement from NASA. The news comes months after he and fellow Astronaut Suni Williams returned to Earth from a nine-month stay aboard the International Space Station that made world news.

NASA Astronaut Butch Wilmore is retiring four months after being 'stranded' in space for nearly 300 days at the International Space Station. He and Suni Williams returned to Earth on March 18, 2025.