Roscosmos cosmonaut Sergey Ryzhikov conducts a hearing exam in the Quest airlock

iss073e0658312 (Sept. 10, 2025) --- Roscosmos cosmonaut and Expedition 73 Commander Sergey Ryzhikov holds a headset inside the International Space Station's Quest airlock. Ryzhikov was conducting a hearing examination frequently conducted inside Quest due to the module's quiet environment. Quest is used primarily to service spacesuits and stage spacewalks.