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.

One of NASA's two previously stuck astronauts has retired from the space agency, less than five months after his unexpectedly long spaceflight came to an end. NASA announced Butch Wilmore's departure on Wednesday.

Sinus and congestion problems are more than just earthly annoyances, according to new research from Houston Methodist. A newly published study reveals that a staggering 85% of astronauts aboard the International Space Station (ISS) experienced at least one nasal and sinus issue during their mission,