The divergence angle of laser beam used in space laser communication is usually no more than 100μrad.Using laser beam with small divergence angle to achieve ac
At 13:40 Beijing time on September 21, a LM-4B carrier rocket lifted offfrom the Jiuquan Satellite Launch Center, and successfully launched the HY-2C satellite
It is an important scientific research activity in China to carry out near-space exploration and scientific ex periments via aerospace carriers.Early near-space
At 13:40 Beijing time on September 21, 2020, a LM-4B launch vehicle lifted off from the Jiuquan Satellite Launch Center, successfully deploying the Haiyang 2C (
A LM-4B carrier rocket lifted off from the Taiyuan Satellite Launch Center at 11:23 Beijing time on September 27, launching two environmental monitoring satelli
This article reviews Mars sampling and return technology,by retrieving and analyzing the patents of domestic and foreign sampling equipment and mechanism techno