Life and science in orbit: China's Shenzhou-23 crew continues busy work

While people on Earth enjoy the Dragon Boat Festival holiday, China's Shenzhen-23 crew – Zhu Yangzhu, Zhang Zhiyuan and Li Jiaying (also known as Lai Ka-ying) – remain busy working at the space station at an altitude of more than 400 kilometers. During the past week, the Shenzhou-23 crew carried…