On December 29, China successfully launched tianhua-4 satellite from Jiuquan Satellite Launch Center. This is the 22nd launch mission carried out by Jiuquan Satellite Launch Center this year, setting a new record for the annual space launch of a single launch site in China. "This year, the space station mission and satellite launch mission are intertwined and carried out in parallel. The task density is high, the state is new, the difficulty is great, the attention is much, and the responsibility is unprecedented." Zheng yonghuang, chief engineer of Jiuquan Satellite Launch Center, introduced. Since this year, Jiuquan Satellite Launch Center has given full play to the leading role of the launch site in the face of high-density launch missions, established "junior college class" and "small special class" for mission quality supervision, strictly adhered to the standard requirements of "precision, flexibility and stability" and "doing right at one time", exceeded 22 annual space launches for the first time, and implemented two manned missions in a year for the first time The first manned space search, rescue and recovery mission and the first flight test of suborbital reusable launch vehicle have created a number of new historical records in China's aerospace. It is understood that in 2022, Jiuquan Satellite Launch Center will carry out two spacecraft launches, two spacecraft recovery and more than 20 satellite launches. (Feng Qingling, reporter Wang lingshuo) (outlook new era)