Three Chinese astronauts docked early Wednesday with their country’s space station, where they will overlap for several days with the three-member crew already onboard and expand the facility to its maximum size.
Docking with the Tiangong station came at 5:42 a.m. Wednesday, about 6 1/2 hours after the Shenzhou-15 spaceship blasted off atop a Long March-2F carrier rocket from the Jiuquan Satellite Launch Center on Tuesday night.
The six-month mission, commanded by Fei Junlong and crewed by Deng Qingming and Zhang Lu, will be the last in the station’s construction phase, according to the China Manned Space Agency.
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The station’s third and final module docked with the station earlier this month, one of the last steps in China’s effort to maintain a constant crewed presence in orbit.
The crew of the Shenzhou-15 will spend several days working with the existing 3-member crew of the Tiangong station, who will then return to Earth after their six-month mission.
The station has now expanded to its maximum size, with three modules and three spacecraft attached for a total mass of nearly 100 tons.
Tiangong can accommodate six astronauts at a time and the handover will take about a week. That marks the station’s first in-orbit crew rotation.