Astronaut Barry "Butch" Wilmore is leaving NASA after a quarter-century of service. Wilmore flew on four different spacecraft ...

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

Wilmore, 62, had already retired from the Navy. Williams, 59, also a retired Navy captain, is still with NASA. She joined ...

Astronaut Barry "Butch" Wilmore announced his retirement Wednesday after 25 years with NASA and serving as a U.S. Navy test ...