国際宇宙ステーションのインスタグラム(iss) - 7月20日 08時22分

Expedition 56 Flight Engineer Ricky Arnold of NASA (foreground) performs maintenance inside the Combustion Integrated Rack to set up the Advanced Combustion via Microgravity Experiments (ACME), a series of five independent studies of gaseous flames. Expedition 56 Commander Drew Feustel of NASA is seen in the background.

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