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Expedition 56 Flight Engineer Ricky Arnold of NASA

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NASA

Jun 26, 2018
Image Article
Expedition 56 Flight Engineer Ricky Arnold of NASA
Expedition 56 Flight Engineer Ricky Arnold of NASA is pictured in the Unity module during life support maintenance work to remove and replace an Oxygen Generation System Hydrogen Sensor.

iss056e014487 (June 18, 2018) — Expedition 56 Flight Engineer Ricky Arnold of NASA is pictured in the Unity module during life support maintenance work to remove and replace an Oxygen Generation System Hydrogen Sensor.