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NASA astronaut and Expedition 73 Flight Engineer Zena Cardman works inside the International Space Station's Quest airlock and performs pressure and leak checks on spacesuit jetpack components. The jetpacks are attached to the rear of spacesuits and are a safety mechanism a spacewalker would use to maneuver back to the orbital outpost in the unlikely event they became untethered from their worksite.

NASA astronaut Zena Cardman works inside the Quest airlock

iss073e0548967 (Aug. 29, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Zena Cardman works inside the International Space Station's Quest airlock and performs pressure and leak checks on spacesuit jetpack components. The jetpacks are attached to the rear of spacesuits and are a safety mechanism a spacewalker would use to maneuver back to the orbital outpost in the unlikely event they became untethered from their worksite.

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