Three years ago, the "Tiangong No. 2" was controlled and then entered the atmosphere ...

For many "titanium powder"

The correct way to open Chinese aerospace

Is the rocket's launch

Rise with spacecraft

Sometimes

Falling, it is also another form of take -off

Don't believe it?

That good, Xiao Tai today

Just tell you a story

The story is very long.

The story is beautiful, 3 years ago

A "Space You"

on the way home

Lit a magnificent firework ...

Why come

Main protagonist

Name "Tiangong 2"

On the Internet, it is affectionately called "Erya"

It is for the development space station

The transition from the manned spacecraft to the manned space infrastructure

Experimental spacecraft

It is also China's first true sense

Spatial laboratory

You may ask

"Er Ya" is the first

What about "big girl"?

"Da Ya" Tiangong No. 1

Once with Shenzhou 8, Shenzhou 9, Shenzhou 10

Both have carried out short -term meetings and united flights

But the main purpose of these tasks

Is to consolidate and master the technical of space meeting and docking

Instead of conducting space experiments

therefore

Although Tiangong -1 is known as China's first space laboratory

But because its "main attack" meets the docking

So when it is called "target aircraft"

"Er Ya" is different

It has three ambitions in space

That is, astronauts stay in the mid -term

Pushing agent in the rail supplement

And in rail maintenance technology test

It also carries 14 items

The development of scientific experimental tasks

Known as "Space Lab"

Deserved

September 15, 2016

"Tiangong No. 2" takes the Long March 2 F Carrier Rocket

Lairel from Jiuquan Satellite Launch Center

More than a month later

"Eleven Lang" -Shenzhou 11 manned spacecraft

"Chasing" into space

October 19, 2016

"Er Ya" and "Eleven Lang" successfully handed in hand

Realize space meetings and docking

Aerospace officer Jing Haipeng and Chen Dong

Enter the space laboratory

Starting the 30 -day space resident life

The mission of "Tiangong II"

This is also officially opened

What to do

So

"Tiangong No. 2" in space

What role does it play?

Count

Really a lot

1

Astronaut in the mid -term stay: the pedal of long -term life of space station

From October 19th to November 17th, 2016, astronauts Jing Haipeng and Chen Dong worked and lived in Class 2 of Tiangong for 30 days. Note. This move allowed my country to break through the mid -term residence technology of astronauts and laid the foundation for the long -term residence of the space station.

Internationally recognized that 30 days are equivalent to the threshold for mid -term residence. There is a big difference between people's life in space and the ground. When people eat in a state of weight, they will change their taste. In addition, listening, vision, muscle, cardiovascular system, etc. will change due to long -term space life. The mid -term of Tiangong IIIIA is mainly to verify the long -term life of astronauts in the space station in the future.

2

Break through "Space and refuel": Essential skills of space station running

From April 22nd to September 17th, 2017, Tiangong No. 2 has been docked and carried out three times with the Freight Speed ​​Tianzhou 1 and conducted a pushing agent supplementary test, commonly known as "space refueling". This is also an indispensable technology to ensure the operation of the space station.

In addition, Tiangong II carries a robotic arm to carry out a mechanical arm operation test for human -machine coordination for the first time. This is to verify the technology of human -machine co -maintenance in the future space station. The astronauts also planted vegetables in Tiangong II to test whether the spacemen can eat fresh vegetables for a long time at the space station for a long time.

3

Scientific experiment: Those "superpowers" of Tiangong II

In addition to undertaking the main experimental task, as a veritable space laboratory, Tiangong No. 2 is equipped with 14 and 600 kilograms of application loads, and has carried out a number of "black technology" experiments.

Observe the sun X -ray violence

Exploring ability compare international astronomical satellites

Tiangong No. 2 gamma storm polarization detector (Polar) is the first international field -wide field, high -efficiency -efficient special cosmic gamma ray polarizing detection instrument, opened a new window of gamma storm polarizing detection, and successfully detected 55 universe Gamega The macarons have been confirmed by the observation of astronomical satellites such as the United States, Europe, and Russia, and have made important contributions to the joint detection of international gamma storms.

Plants grow in the whole process of space

Rice, Arabidone mustard germination results

Tiangong No. 2 completed the entire process of plant growth for the first time. Tiangong II is equipped with a micro -culture box, which is typical representing the typical representative of rice and green leaf plants with grain crops. This experiment provided an important space experimental evidence for effective use of limited resources of space, and provided important space experimental evidence to develop spatial plant cultivation technology and explore the survival of human long -term space.

Use the pulse signal to set the track

Run the first international clock in the cold atomic clock

For the first time in China, Tiangong II realized the pulse signal of the crab -shaped nebula (CRAB) pulse signal using the pulse signal and the development of pulse star observation and navigation technology.

In addition, the cold atom clock in Tiangong II is the first cold atom clock in the world. Based on the results of the rail test, the stability of the cold atom bell reached 7.2E-16, which is at the international leading level. The method and technology of atomic laser cooling provides direct technical support for the high -precision time system of the future space. Participate in quantum communication

Realize quantum key allocation and laser data transmission

Tiangong No. 2 quantum key allocation test adopts the method of deceiving the light quantum quantum, which has successfully carried out the heaven and earth quantum key allocation and laser business data transmission. This work has made preliminary technical verification for my country's quantum scientific satellite and consolidated my country's leading position in space quantum science and technology.

Speed ​​"digital camera"

Get marine land image

Ascended to space with the 2nd of Tiangong, there is such a cutting -edge "digital camera", which is "multi -angle wide wave band imaginger". High -scale and multi -segment images such as the ocean, atmosphere, and land are widely used in the fields of agriculture, forestry, and geological disasters.

It can be said

Running

1036 days 22 hours 54 minutes 56 seconds

"Tiangong No. 2"

He fulfilled its mission and fulfilled its mission

On the journey of Chinese people to explore aerospace

Leave an important footprint

Why leave

July 19, 2019 at 21:06

"Tiangong No. 2"

With a gorgeous light disappeared at the atmosphere

A small amount of wreckage falls into the southern Pacific reservation safety waters

Countless netizens said

I'm really reluctant to say goodbye to "Erya"

The "Tiangong No. 2" design is 2 years in the orbit life

And it has been in space

Flying for 2 years and 10 months

Still in good condition

So why is it at this time

Choose to let it fall safely?

Zhu Xipeng, chief designer of Tiangong 2, introduced

If Tiangong No. 2 continues to fly

It is necessary to invest in the heavenly foundation and the foundation

A large amount of measurement and control resources

This is just to continue to test the reliability of Tiangong II

And this has been proved by a large number of experiments

No need to repeat operation, causing waste

In addition, the safe and stable operation of Tiangong No. 2 in space

Can't do without the strong support of the ground measurement and control system

In the nearly three years of flight from Tiangong 2

A large number of technical personnel on the ground

Always with it day and night

Therefore, once the Tiangong No. 2 is determined, there will be no new tasks

You must let it fall safely as soon as possible

So as not to turn into an unpopular aircraft

Based on these considerations

"Tiangong No. 2" is "retreat"

Give us a good memory

And point the direction to the future

After that, the curtain of the construction of the Chinese space station

Pull away slowly

April 29, 2021

Long March 5 Y Yao II Load Rocket

Equipped with space station Tianhe core compartment

Launching in Hainan Wenchang Aerospace launches

June 17, 2021

Shenzhou 12th multiplication group

Nie Haisheng, Liu Boming, Tang Hongbo

Enter Tianhe core compartment successively

It marks the Chinese people entering their own space station for the first time

October 15, 2021

Shenzhou 13 multiplication group

Zhai Zhigang, Wang Yaping, Ye Guangfu

Leading the expedition, the 6 -month flight task was turned on

Since then, manned space engineering

Fully transfer to the construction stage of the space station

July 18, 2022

Ask Sky Experiment

Combine with Long March 5 Yao San Load Rocket Combination

Transfer to the launch area

Select the opportunity to implement the launch

Native

As netizens sent a saying

"Don't say goodbye, look forward to the future"

"Tiangong No. 2" fell behind

We build the dream of "Tiangong" in the sky

It is being implemented step by step

The farewell three years ago

Created us and the future

A better encounter

- END -