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NASA astronaut Christina Koch works on the COLBERT treadmill

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NASA

Apr 24, 2019
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NASA astronaut Christina Koch works on the COLBERT treadmill
NASA astronaut Christina Koch works to remove and replace the treadmill inside the Tranquility module.

iss059e034662 (April 23, 2019) — NASA astronaut Christina Koch works to remove and replace the treadmill, also known known as the Combined Operational Load Bearing External Resistance Treadmill, or COLBERT, inside the Tranquility module.