Cosmonauts aboard the International Space Station do rigorous training on an arm bicycle to stay fit in outer space, Oleg Kon

▶️ Cosmonauts aboard the International Space Station do rigorous training on an arm bicycle to stay fit in outer space, Oleg Kononenko, commander of the Roscosmos cosmonaut squad and TASS special correspondent on board the ISS reported. Video: Oleg Kononenko/Roscosmos/TASS, the ISS #TASSonISS Source: TASS Russian news agency