What number of Tiangong is launched in 2021?
Tiangong-2 was launched in 2016, not 2021.
Tiangong 2, the second target aircraft launched for China's manned space program, is China's first manned space science experimental space laboratory with complementary functions.
Tiangong-2 was launched from Jiuquan Satellite Launch Center on September 15, 2016; Terminate the data service on July 16, 2019; On July 19, 2019, it was controlled to depart from orbit and reenter the atmosphere, falling into the planned safe waters in the South Pacific.
Flight carriage
Tiangong 2 carries 14 application loads weighing about 600kg, as well as aerospace medical experimental equipment and on orbit maintenance test equipment, including the following items:
1. The space cold atomic clock is the first cold atomic clock in orbit in the world. According to the test results in orbit, the daily stability of the cold atomic clock is calculated to reach 7.2E-16.
2. The Polarization Detector for Gamma Ray Bursts (POLAR) jointly developed by China and the EU is the first special polarization detector for cosmic gamma ray bursts with wide field of view and high efficiency in the world.
3. Space sericulture, double pendulum experiment, water film reaction and other three award-winning experimental projects in the space science and technology design competition for Hong Kong middle school students.
The latest Tiangong number in 2022
When will Tiangong be launched in 2021?
It was launched by Tiangong on April 29, 2021.
The launch time of the Tiangong Core Module was exposed, focusing on the broad vision of the international community. Many experts expressed their admiration for the space industry of the major eastern countries, saying that the major countries are developing too fast. Now that the crew of astronauts has been determined, many space enthusiasts are full of hope for this and look forward to another great feat of great powers.
Achievements of Tiangong:
The Tiangong-2 space application system has sent us a lot of information about the earth so far, such as a lot of information about resources and environment, among which the most attractive is the earth's atmosphere data, scientific data on lakes, as well as data on marine meteorological support and global change, so that Chinese scientists can get support from scientific data in these fields, Great progress has been made.
Tiangong-2 space application system comprehensively integrates the data of space and sends back a lot of space data to our scientists. These detailed data can help scientists better study the environment of outer space and some special natural phenomena in the universe. It is very helpful for us to explore space.
Every improvement reflects the unremitting pursuit of reliability by the researchers, which means countless theoretical analysis, mathematical simulation and experimental verification. When the reliability of the rocket is getting closer and closer to 1, it is extremely difficult to realize the small change of every number after the decimal point.
When will China's Tiangong-2 launch?
The launch time of the Mengtian experimental module is October 31, 2022.
Recently, the "Mengtian" experimental module passed through Qinglan Port, successfully arrived at Wenchang Space Launch Site, and completed propellant injection a few hours ago. It is expected to launch on October 31, docking with the "Tianhe" and "Wentian" assemblies.
After transposition, the first phase of China's space station project can be declared completed. In fact, China's space station still has a second phase project. It was rumored that the second phase project of "Tiangong" is to launch three ground backup modules of "Tianhe", "Wentian" and "Mengtian", forming a six module structure. In addition to the accompanying "Sky Survey" optical module, it is seven module.
Research direction of "Mengtian" experimental module
The Mengtian experimental cabin is mainly oriented to microgravity scientific research, equipped with experimental cabinets in multi-disciplinary directions such as fluid physics and material science, and supports the research of material essence laws such as material solidification mechanism under the cover of gravity, as well as cutting-edge experimental research such as ultracold atomic physics.
Take material science as an example. Generally, the preparation process of materials is to heat the materials first and melt them into liquid, which will be affected by gravity. "On the space station, we can study what happens when materials have no gravity, which in turn can promote the research of materials science and processing on the ground, improve efficiency and quality," said Gu Yidong, an academician of the Chinese Academy of Sciences.
Tiangong No. 2 has lifted off. Where has Tiangong No. 1 gone?
Tiangong-1, as China's first target aircraft, was successfully launched at Jiuquan Satellite Launch Center on September 29, 2011.
It crashed in the South Pacific Ocean on April 2, 2018 after seven years in orbit.
Tiangong-2, as China's second target aircraft, was successfully launched at Jiuquan Satellite Launch Center on September 15, 2016.
After three years of in orbit flight, on July 19, 2019, it was controlled to crash in the South Pacific.
Tiangong 1 and Tiangong 2 did not escape from the crash. Of course, not only the Tiangong target aircraft, but also all the manned spacecraft in the world cannot escape the fate of falling on the earth. But some of them were burned out in the friction with the atmosphere, and some were stored in museums for exhibition.
Tiangong 1 and Tiangong 2 are mainly experimental. Different from the space station in a complete sense, since the Tiangong spacecraft is the foundation for the real space station flight phase. Then, when the scheduled test is completed and the life expires, it's time to die.
It can be said that the fate of space stations, without exception, is to burn up in the atmosphere and cannot remain in space as space junk, because this will cause harm to satellites and space stations that will be launched later.
Today, there are as many as 1.25 billion pieces of space junk around the earth. When flying at high speed, these pieces of space junk will pose a serious threat to spacecraft launched into orbit.
In December 1991, a defunct Russian satellite, "Cosmos 1934", collided with another Russian satellite, "Cosmos 926", and released large debris.
In July 1996, the Cherry communication satellite of France was hit by a debris generated when the Ariane carrier rocket entered orbit many years ago.
The latest Tiangong number in 2022
On May 29, 2013, an Ecuadorian satellite collided with space debris, causing the satellite to malfunction.
On May 12, 2021, the robot arm of the International Space Station was hit by space debris, but it did not cause major impact.
These are just a few examples of space junk hitting satellites or space stations. Generally speaking, under the action of the gravity of the earth, each has its own orbit and will not collide. However, there is no absolute safety. Space junk can also hit satellites or space stations.
Therefore, large space stations will fly to the earth under control and burn up in the friction with the atmosphere when their service life expires.
Such as the Mir space station launched in the former Soviet Union. In 2001, after burning in the atmosphere, the space station crashed into the South Pacific Ocean.
The current International Space Station will also be decommissioned between 2024 and 2028. After decommissioning, its fate will be the same as that of Mir. After the atmosphere burns, it will crash into the Pacific Ocean.
It can be seen that the space station will eventually burn and crash.
Tiangong-1 and Tiangong-2 are still experimental space stations. When the required tests are completed, they will burn and crash.
In other words, the remains of Tiangong 1 and Tiangong 2 target aircraft are now at the bottom of the South Pacific Ocean and will be buried here forever.
The Tiangong-1 target aircraft is 10.4 meters long, 3.35 meters in diameter at the largest point, and 8 tons in weight. It is composed of an experimental module and a resource module.
The main task is to test the rendezvous and docking with Shenzhou 8, Shenzhou 9, and Shenzhou 10 spacecraft, verify the rendezvous and docking technology, and lay the foundation for subsequent space station launch. The astronauts' stay in space test and the key life support system test of manned space station were also conducted.
The latest Tiangong number in 2022
In addition, remote sensing of the earth, space environment, space physics exploration, space science experiments, aerospace medicine experiments and space technology experiments will also be carried out.
The Tiangong 2 target aircraft is 10.4 meters long, 3.34 meters long in diameter, and 8.6 tons in weight.
The mission is slightly different from Tiangong-1. After Tiangong-1 has verified the rendezvous and docking mission, Tiangong-2 is unnecessary to verify.
Its main purpose is to carry out space science experiments, not only carrying the world's first cold atomic clock independently developed by China. There are also 14 space science experiments to be carried out, such as: microgravity basic physics, space material science, space life science, etc.
In other words, Tiangong-2 is the first real space laboratory in China and has made great contributions to the development of science and technology in China.
After all, as experimental space stations, Tiangong-1 and Tiangong-2 have completed their assigned tasks. It will have to retire and give way to the new and real space station.
In the early planning, Tiangong series of target aircrafts were not only Tiangong 1 and Tiangong 2, but also Tiangong 3. However, in the later planning, the mission of Tiangong 3 and Tiangong 2 were merged. Therefore, Tiangong 3 also ended up without any problems. Only Tiangong 1 and Tiangong 2 were launched.
In fact, the mission of Tiangong 3 and Tiangong 2 will not lose a way to save resources. After all, the cost of launching an aircraft is not small.
The smooth construction of today's space station comes after the trip of Tiangong series of aircraft. The construction of China's space station will be completed in 2022, but the multinational international space station is expected to be retired between 2024 and 2028. At that time, there will only be our type of space station in space.
What achievements has China made in the field of aerospace technology?
China has made many important achievements in the field of aerospace technology, some of which are listed below:
In 1960, China's first man-made satellite, "Dongfanghong-1", was successfully launched, becoming the third country after the Soviet Union and the United States to have the capability of launching satellites independently.
In 2003, China's first manned space flight mission "Shenzhou V" was successful, and China became the third country after the Soviet Union and the United States to be able to conduct manned space flight independently.
In 2013, China's first lunar exploration mission "Chang'e-3" successfully landed on the moon, which is the third country after the Soviet Union and the United States to send a probe to the moon surface.
In 2016, China's first space laboratory "Tiangong-2" was successfully launched and successfully docked with the manned spacecraft "Shenzhou XI".
In 2019, China successfully launched its first 5G satellite, providing support for future intelligent aerospace.
In 2020, China's Chang'e-5 lunar exploration project successfully completed the lunar sampling and return mission, becoming the third country to complete the lunar sampling and return mission after the United States and the Soviet Union.
These achievements show that China has made remarkable progress in the field of aerospace technology and has become one of the countries with the strongest aerospace technology strength in the world.
