

A former fighter pilot who traded the skies of Japan for the silent expanse of space, representing his nation on the International Space Station.
Kimiya Yui's career is a narrative of precision and patience, a path from the cockpit of an F-15 fighter jet to the cupola of the International Space Station. Selected by JAXA in 2009 after a rigorous process, his background as a test pilot and instructor in the Japan Air Self-Defense Force provided the perfect foundation for the demands of spaceflight. His journey to orbit was a lesson in perseverance; he served as backup for multiple missions before finally receiving his own assignment. In 2015, he launched aboard a Soyuz spacecraft, spending 142 days living and working on the ISS as a flight engineer. During his tenure in microgravity, he conducted a wide array of Japanese scientific experiments, maintained the station's complex systems, and shared the experience with the public through stunning photography and outreach. Yui embodies the modern astronaut: a skilled engineer, a calm operator in a high-stakes environment, and a diplomat for science on a global platform.
1965–1980
The latchkey kids. Raised during divorce, recession, and the end of the Cold War. Skeptical, self-reliant, media-literate. They invented indie culture, grunge, and the early internet — then watched the Boomers take credit.
Kimiya was born in 1970, placing them squarely in the Generation X. The events that shaped this generation — economic uncertainty, the end of the Cold War, and the rise of personal computing — shaped the world they entered and the choices available to them.
The biggest hits of 1970
#1 Movie
Love Story
Best Picture
Patton
#1 TV Show
Rowan & Martin's Laugh-In
The world at every milestone
First Earth Day; The Beatles break up
Fall of Saigon ends the Vietnam War
Internet adopts TCP/IP, creating the modern internet
Challenger disaster; Chernobyl nuclear meltdown
Pan Am Flight 103 bombed over Lockerbie
Soviet Union dissolves; World Wide Web goes public
Y2K passes without incident; contested Bush-Gore election
Deepwater Horizon oil spill; iPad launched
COVID-19 pandemic shuts down the world
He is a qualified F-15J fighter pilot and served as a test pilot and instructor for the Japan Air Self-Defense Force.
During his ISS mission, he grew the first ever flower (a zinnia) to bloom in space.
He holds a bachelor's degree in mechanical engineering from the National Defense Academy of Japan.
He performed several spacewalks (Extra-vehicular activities) during his time on the ISS.
“From the cockpit to the cosmos, every detail in the checklist matters.”