iss038e024951 (1/5/2014) --- Japan Aerospace Exploration Agency (JAXA) Koichi Wakata strapped into his sleeping bag in his sleep station located in the Node 2. Circadian Rhythms investigates the role of synchronized circadian rhythms, or the “biological clock,” and how it changes during long-duration spaceflight.
Photographer Koichi Wakata
Date January 5, 2014