The third group of visitors have just arrived at the space station.
The core module of the under-construction Tiangong was arrived at about six hours after it was lifted off. At 5:42 a.m., the capsule docked at the port. The post was from the China Manned Space Agency.
The three crew members are expected to spend about six months on the 54-foot-long (18.6 meters) Tianhe.
News about China's space program.
Chinese space officials have said that during their time in space, the trio will conduct a variety of scientific experiments and educational outreach activities.
The arrival of the other modules, Wentian and Mengtian, will be watched by the astronauts.
The outpost will be about 20% the size of the International Space Station.
Three astronauts were sent to the core module of the previous missions. The six-month-long Shenzhou 13 was launched in October and returned to earth in April.
Around the end of the year, there is expected to be a launch. China doesn't reveal much about its space missions until they are about to happen. The first-ever crew handover will take place if all goes according to plan.
There have been a lot of human spaceflights in the last two years. Two suborbital space tourism missions were conducted by Jeff Bezos' Blue Origin on March 31 and June 4 and the return of a NASA astronauts and two cosmonauts from the International Space Station on March 18.
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