This is an archive of information released in the past.

Disclaimer: It may contain broken links or outdated information. Some parts may not function in current web browsers.
*Visit for the latest information.


Japan Aerospace Exploration Agency:JAXA
  • contact us
  • Japanese

JAXA Astronauts

Last Updated: March 28, 2017
Kimiya Yui
photo: Kimiya Yui

Kimiya Yui was born in 1970, in Nagano. He graduated from School of Science and Engineering, National Defense Academy of Japan in March 1992. He joined Japan Air Self Defense Force, Ministry of Defense in April 1992. From December 2008 until his retirement, he worked as a Lieutenant Colonel at the Air Staff Office, JASDF.

He was selected to be an astronaut candidate by Japan Aerospace Exploration Agency (JAXA) in February 2009 and joined JAXA in April 2009.

Since April 2009, he has participated in about two years of Astronaut Candidate (ASCAN) Training at NASA, which includes scientific and technical briefings, intensive instruction on the ISS systems, Extravehicular Activity (EVA), Robotics, physiological training, flight training using the T-38 jet trainer, and water and wilderness survival training.

He was certified as an ISS astronaut in July, 2011.

He participated in the 16th NASA Extreme Environment Mission Operations (NEEMO 16) in June, 2012.

In October 2012, he was assigned as a crewmember for the ISS Expedition 44/45 mission.

On July 23, 2015, Yui commenced the ISS Expedition 44/45 mission. On December 11, 2015, Yui safely touched down in Kazakhstan after a 142 day mission aboard the International Space Station.

In November 2016, Yui was assigned as the Head of the JAXA Astronaut Group.

Copyright 2007 Japan Aerospace Exploration Agency Site Policy