In the recent 20 years,China has carried out several major space programs and made great achievements,which aroused close attention by the international space community.From 2007 to 2013,the manned rendezvous and docking missions were successfully completed,the Chang’e-1,Chang’e-2 and Chang’e-3 lunar probes were successfully launched,and various manmade satellites represented by the Beidou Navigation Satellite System and the High Resolution Earth Observation System were progressively implemented in orbit.China is stably building itself into a space power.1.China’s Manned Space Program In 1992,the Chinese Manned Space Program was approved by the government,and became the largest and most complicated space activity in the nation’s history[1].The Program follows a three-step
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