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. 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.
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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.
Fei, 57, is a veteran of the 2005 four-day Shenzhou-6 mission, the second time China sent a human into space. Deng and Zhang are making their first space flights.
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.