iss073e0257845 (July 8, 2025) --- Roscosmos cosmonaut and Expedition 73 Flight Engineer Sergey Ryzhikov poses for a playful portrait in the Zvezda service module seemingly holding its treadmill above his head aboard the International Space Station. Ryzhikov was working on treadmill maintenance inspecting, removing, and replacing components on the exercise device. Credit: Roscosmos