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NASA astronaut Ricky Arnold calibrates the Bone Densitometer

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NASA

Jul 20, 2018
Image Article
NASA astronaut Ricky Arnold calibrates the Bone Densitometer
NASA astronaut Ricky Arnold calibrates the Bone Densitometer which measures the mass per unit volume (density) of minerals in bone aboard the International Space Station.

iss056e095029 (July 13, 2018) — NASA astronaut Ricky Arnold works on gear inside the International Space Station.