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Shenzhou 2, new appearance:

Although Shenzhou 2 is the second unmanned spacecraft, it is China’s first full-scale spacecraft, which can also be said to be manned. The "most complete version" of the spacecraft, its various technical conditions are basically the same as when it was manned. The spacecraft flew in orbit for 7 days and then returned to the ground. Experiments in the fields of space life science, space materials, space astronomy and physics were carried out on the spacecraft in a microgravity environment. Various instruments and equipment have stable performance and work normally, and a large amount of data has been obtained. The technical status of the spacecraft is basically the same as that of a manned spacecraft.

Aerospace knowledge:

June 18, 14:22 China embarked on the road of reform and opening up in 1978. Reform and opening up has stimulated the vitality of all walks of life and enabled China's productivity to continue to develop. New cities are rising one after another. One after another major scientific and technological achievements have been produced and developed. Large-scale projects have been completed one after another. One by one, very large enterprises are growing rapidly. China has grown taller and stronger. It is no longer the poverty and weakness of the 1940s and 1950s, nor the poverty and backwardness of the 1960s and 1970s! The successful launch of the Shenzhou-6 spacecraft this morning is another major achievement of my country's social development since the reform and opening up!

Space shuttle information:

The space shuttle is a winged, reusable rocket-powered space vehicle. It is launched out of the atmosphere by an auxiliary launch vehicle and serves as a means of transportation between the earth and outer space. The space shuttle combines the properties of an airplane and a spacecraft, like a spaceship with wings and an appearance like an airplane. The shuttle's wings provide air braking when returning to Earth and lift when landing. When the space shuttle ascends into space, like other single-use vehicles, it uses rocket power to ascend vertically. Because of the wings, the shuttle's payload ratio is lower. After more than 20 years of use, it has been found that the cost necessary to ensure the reliability of the space shuttle is too high, and it is on the verge of being eliminated.