The significance of the successful return of Chang 'e V

On June 24th, 2020, 165438+ Long March V rocket with Chang 'e V detector was successfully launched, marking the third step of China's "lunar exploration project". Chang 'e V mission is the sixth mission of the "Lunar Exploration Project", and it is also one of the most complicated and difficult missions of China Aerospace. It will realize China's first unmanned return to the moon, which will help deepen the scientific research on the origin and evolution of the moon.

It is of great significance for Chang 'e V to carry out this mission. This mission is expected to achieve four "firsts" since China launched its space activities: automatic sampling on the surface of the moon for the first time; Take off from the moon for the first time; For the first time, unmanned rendezvous and docking was carried out in the lunar orbit 380 thousand kilometers away; For the first time, he returned to earth with lunar soil at a speed close to the second universe.

According to the plan, the Chang 'e-5 mission will break through the technologies of narrow window multi-track bundling launch, automatic sampling and packaging on the lunar surface, lunar take-off, lunar orbit rendezvous and docking, and lunar sample storage. Improve the lunar exploration project system and accumulate talents, technology and material foundation for China's manned moon landing and deep space exploration in the future.

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Release plan

On June 5438+ 10, 2004, the State Council, China officially approved the establishment of a lunar exploration project, named "Chang 'e Project", which was divided into three stages: winding, falling and returning. The third phase of the project will be implemented from 20 1 1 to 2020, with the goal of lunar patrol survey and sampling return.

Chang 'e V is a part of the third phase of the lunar exploration project, the core of which is to complete the sampling and return of unmanned lunar surface. On October 2011110, the State Council officially approved the project of Chang' e-5, and the development of the detector started.

From 20 12 to 12, the system scheme of Chang 'e-5 detector was summarized and reviewed, and it was transferred to the initial sample development stage. Hu Hao, deputy chief designer of the lunar exploration project, said that the Chang 'e-5 probe is scheduled to be launched in 2065.

In 20 14 and 10, the jump reentry flight test in China was successful, which verified the related technology for the third phase of lunar exploration and obtained effective test data. 2065438+July 2005, Chang 'e-5 probe entered the prototype development stage.

2065438+On June 7th, 2007, China Aerospace Science and Technology Corporation announced the overall plan of the third phase of the lunar exploration project for the first time at the global lunar exploration conference. It is planned to send the Long March 5 carrier rocket into the earth-moon transfer orbit in June165438+1October of that year, and assemble the Long March 5 remote three rocket for launching the Chang 'e-5 probe in Tianjin Big Rocket Base in April of that year.

On July 2nd of the same year, the Long March V carrier rocket failed to launch the18th satellite. At the end of the year, the mission of Chang 'e V was forced to be postponed, and Chang 'e V entered a sealed state. It is planned to be launched with the Long March V carrier rocket in 20 19.

201919 on February 27th, the launch practice of the Long March-5 carrier rocket was successful, and the Long March-5 successfully went around, basically solving the engine problems that plagued this rocket. In March 2020, the Long March 5 rocket undertaking the Chang 'e V mission was assembled at Tianjin Big Rocket Base.

In July 2020, the Chang 'e V probe arrived at the launch site by air, and the work of the launch site was carried out for nearly five months. In late September, 2020, the Long March-5 Yaowu carrier rocket was safely delivered to Qinglan Port, Wenchang, Hainan by Roy Transport Team, and then transported to Wenchang Space Launch Site, China by road.

Since then, according to the test launch process, the rockets have successively completed various preparatory work such as final assembly and testing. On the morning of165438+1October17th, the mobile launch platform drove out of the vertical test building of the launch site and completed vertical transshipment.

References:

Baidu encyclopedia-Chang 'e No.5