Exercise bike in space helps keep crew fit
During a recent video sent from the core module of China's space station Tianhe (Harmony of Heavens), an exercise bike attracted lots of attention from viewers. China launched its seventh manned spaceflight Shenzhou XII, on June 17, with three astronauts aboard for a three-month mission, during which they require regular exercise. On June 23, astronaut Nie Haisheng opened a package c