On 2021April 29th,11:23rd, the Tianhe core module of China Space Station was launched from Wenchang Space Launch Site, China, and the mission was successful. On May 9th, 200212002, China Manned Space Engineering Office released the orbit of the last stage wreckage of the Long March 5 B-Yao II carrier rocket.

China Wenchang Space Launch Site, located in Longlou Town, Wenchang City, Hainan Province, which belongs to xichang satellite launch center, is the first coastal open space launch base in China and one of the few low-latitude launch sites in the world. The launch site can launch the Long March 5 series rockets, the Long March 7 launch vehicle and the Long March 8 launch vehicle, and mainly undertake the launching tasks of spacecraft such as geosynchronous orbit satellites, large-mass polar orbit satellites, large-tonnage space stations and deep space exploration satellites.

The main task of the Long March V-B launch vehicle The Long March V-B launch vehicle is a new generation of launch vehicles with the largest carrying capacity in near-earth orbit in China, and undertakes the launch mission of the China Space Station. According to the mission plan, the space station project is divided into three stages: key technology verification, construction and operation. Among them, in the key technology verification stage, six tasks were arranged, including the first flight of the Long March 5 B carrier rocket and the launch of the test core module.

Dong Li, chief designer of the Long March V-B carrier rocket system of the First Academy of Aerospace Science and Technology Group, said: "Only the Long March V-B carrier rocket can be competent to launch the manned space station cabin."

The above contents refer to Baidu Encyclopedia-Wenchang Space Launch Site.