Astronauts Megan McArthur and Akihiko Hoshide work on the U.S. oxygen generation system.
iss066e003308 (Oct. 20, 2021) — Expedition 66 Flight Engineers Megan McArthur of NASA and Akihiko Hoshide of the Japan Aerospace Exploration Agency (JAXA) replace components and flush contaminants inside the Tranquility module’s U.S. oxygen generation system.