"At present, the six systems are in stable operation, with 100 percent of the oxygen resources regenerated and 95 percent of the water resources recycled," said Bian Qiang, director of the environmental control and life-support engineering office under the Astronaut Center of China. "This reduces the amount of supplies from the ground by six tonnes every year," added Bian. The revelation marks a significant advancement in China's manned spacecraft's environmental control and life-support systems, moving from "replenishment" to "regeneration." The system has six subsystems for various operations, such as the creation of oxygen, the removal of carbon dioxide, and the...