Here's how China's astronauts keep fit aboard Tiangong space station (video)
China's astronauts are working up a sweat in orbit with a variety of exercise machines designed to keep them fit and fight the loss of bone density that comes with living in microgravity.
TroibNews 
China's astronauts are working up a sweat in orbit with a variety of exercise machines designed to keep them fit and fight the loss of bone density that comes with living in microgravity.
