Whispering about the sudden fall of suspected satellite and rocket wreckage in Shiyan, Hubei Province. What's the situation at the scene?

The wreckage is suspected to come from the Long March 6 rocket carrying out satellite launch missions such as Qilu-1. The wreckage fell without causing casualties or property damage.

This is normal. According to scientific positioning, the falling area is accurately calculated by scientists. Although it is a wreck, it is not allowed to fall casually. This phenomenon often occurs in Yunxi area of Shiyan.

When a satellite is launched, the rocket always falls. These positions can basically be calculated in advance, so when launching a satellite, you must choose a sparsely populated place as the landing point of the rocket. Moreover, farmers near the crash site should be evacuated every time to ensure safety. China has launched hundreds of satellites, but it hasn't heard of anyone being killed by a falling rocket. So there is no need to make a fuss.

It has been certified for a long time that rocket wreckage is a landing site carefully researched and designed by scientists and generally does not endanger people's lives and property.

"The main landing area of the first-stage rocket debris" is the area where the first-stage rocket propulsion falls. Rocket fragments fell from the air. Although the location of the landing site is uncertain, most of the debris mainly

Are concentrated in a relatively concentrated area near the central landing site. Rockets are launched in sparsely populated places, such as China in the west. Before the rocket is launched, it is necessary to predict the landing site according to the satellite launch center that carries out the launch mission, and do a good job of evacuation in advance, so that there will be no casualties and other problems.

Unexpected trouble, as the name implies, this part of debris will return to the ground shortly after the rocket is launched, and even when the rocket begins to roar and vibrate, it will begin to "drop slag/debris": in fact, it is often insulation foam or frozen ice.

The atmosphere is very dense, and the debris generated at this stage is not high enough and the speed is very low, so these debris have not broken through the atmosphere at all. According to the principle of rocket propulsion, almost all rockets should be designed in multi-stage mode, and the bigger the lower part, the stronger it will be (refer to the introduction of Saturn V above). This means that this extra-territorial disaster is characterized by: very big, very expensive and very dangerous!

Take China's Long March 2F ace rocket for example. Within about 3 minutes after launch, the rocket's escape tower, booster, first-stage rocket, fairing and other important components will be separated one after another, and the maximum height of the finally separated fairing is only about 100 km. Under the action of gravity, they will inevitably return to the earth.

Due to the different separation time, separation attitude and meteorological conditions, their falling areas are often scattered and huge. Due to historical and technical reasons, Jiuquan, Taiyuan and Xichang, the three traditional launch sites in China, are all located inland, and the destructive power of these fragments should be considered emphatically every time they are launched.

How to recycle rocket wreckage Generally speaking, after a rocket is launched, there are basically two ways to deal with the wreckage. One is to professionally recycle the debris falling to the ground in the area scheduled by the relevant departments according to the scheduled track, and evaluate the local environment to ensure that the debris will not have a great ecological impact on the surrounding area.

The other is burning directly in the atmosphere. Basically, many separated rocket debris is destroyed in the atmosphere, which can also minimize the impact of debris falling to the ground.