Weightless Workouts

A new fitness machine on the space station brings astronaut exercise into the 21st century

Vibration Isolation


The bicycle ergometer on the International Space Station is an improvement on the device used by shuttle astronauts. This model includes a vibration isolation system designed to reduce disturbances to sensitive experiments. Here Michael Lopez-Alegria works up a sweat in the station's Destiny science laboratory during his Expedition 14 mission in 2006.

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