Myotendinous and Neuromuscular Adaptation to Long-term Spaceflight (Sarcolab)-3: Yesterday, the crew configured the Muscle Atrophy Research & Exercise System (MARES) in the Columbus module. Today they completed the second of three in-flight sessions of joint-NASA-ESA-Russia Sarcolab experiment. The subject ingressed MARES, followed by the operator performing ultrasound measurements of the right calf muscle with remote …