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The crews of China’s Shenzhou-21 and Shenzhou-23 missions gather for a group photo aboard the Tiangong space station yesterday morning. The Shenzhou-23 crew — commander Zhu Yangzhu, pilot Zhang Zhiyuan, and payload specialist Lai Ka-ying — arrived at the station early yesterday morning, just hours after their late-night launch from the Jiuquan Satellite Launch Center in northwestern China on Sunday. The Shenzhou-21 crew aboard Tiangong opened the hatch at 5:13 a.m. and welcomed the new arrivals. They will conduct handover work aboard the space station. Xinhua