Chennai, July 17 -- After the safe splashdown of four member AX-4 crew, including Indian astronaut Shubhansu Shukla, following their 18-day stay in the orbital platform, NASA today said maintaining muscles and monitoring astronaut health in space were the top research subjects
aboard the International Space Station (ISS).
The Expedition 73 crew also replaced critical life support hardware and serviced a variety of experimental gear.
The lack of gravity weighing down on a human living in space contributes to muscle loss since it
takes much less effort to move around in weightlessness.
Spaceflight crews exercise daily for two hours to counteract space-caused muscle atrophy and
bone loss to stay healthy in microgravity and remain in sha...