NASA astronauts Jonny Kim and Mike Fincke pose for a fun portrait during research activities

iss073e0886423 (Oct. 17, 2025) --- NASA astronauts (from left) Jonny Kim and Mike Fincke, both Expedition 73 flight engineers, pose for a fun portrait during research and maintenance activities inside the International Space Station's Destiny laboratory module. Fincke shows off a pair of research cassettes housing samples for the Pharmaceutical In-space Laboratory experiment that explores growing protein crystals in microgravity. Results may promote the development of new pharmaceuticals and advanced therapies in weightlessness.