Tags: Artificialsatellite, Satellite.
Shenzhou 4 (Chinese: 神舟四号) launched on December 29 2002 was the fourth unmanned launch of the Chinese Shenzhou spacecraft. Two dummy astronauts were used to test the life support systems. (A live astronaut was not used until Shenzhou 5 on October 15 2003.)The spacecraft was equipped for a manned flight even featuring a sleeping bag food and medication.