How to deal with space junk, what to do with space junk

90% of Earth's orbit is made up of space junk, which travels seven times faster than bullets. A piece of trash the size of a mung bean collides with a spacecraft, which is equivalent to the power of a grenade. As a result, the suicide satellite was developed, which was only the size of a football in size, and once space junk was detected, it would attach itself to the garbage, reducing its speed into the atmosphere and dying with the space junk.

Currently, an American aerospace company is deploying a space junk disposal called "Space Shepherd".

It can use space power to make space junk get better disposal.

At present, there is a growing trend of junk in space, which seriously threatens the space flying in space.

The safety of the spacecraft. According to scientists' calculations, it was released when it collided with a piece of garbage a few centimeters in size.

The energy is equivalent to the energy released by colliding with a bowling ball traveling at 100 kilometers per hour.

What a bowling ball looks like flying towards you! American Airlines Aerospace engineer Karojo said. In addition, the earth.

There are about 1,900 tons of garbage hidden in the low orbit. Most of the garbage is discarded launchers and satellites, dodge.

This junk will not have much difficulty, but after this space junk collides with other junk, the situation is very different.

Sort of. For example, after a series of collisions, this space junk turns into a lot of smaller pieces of junk and crashes into it.

The probability of them is greatly increased. What's worse is that the process never stops.

Karoucho suggests: Use a reusable, solar-powered aircraft to clean up space junk. Solar energy.

When an aircraft is charged with solar panels, the current on it interacts with the Earth's magnetic field to create a propulsion.

The power of space junk, space junk also enters the atmosphere and is burned to ashes.

Did you know? There is a lot of garbage in space, but everyone doesn't know what to do with space junk, I have a good way to throw space junk into a black hole, the black hole is very powerful, and it can also absorb light, so you can pick up garbage into the black hole.

Open a garbage station in space.

A spacecraft can be built and sent into space to "hold" space junk, crash into the atmosphere and burn up.

It's floating at the moment. It's just about minimizing emissions.

There is a proposal to carry out **, but it is difficult and costly, and it is estimated that it will be done if there are too many.

Although there is more and more space junk, the chance of hitting it is still very small.

N years later, you can**!Now technology can't reach it!I can only let it float!

Scientists' treatment of space junk is mainly divided into two aspects, one is evasion, which pushes the stopped satellite to other orbits to avoid collision with the normal working satellite, and the other is elimination, that is, using spacecraft to bring the damaged satellite back to the earth's atmosphere to burn and reduce the garbage in space.

How to deal with space junk

Space junk, also known as space debris, orbital debris, etc., refers to various man-made waste bodies and their derivatives in space, such as scrapped satellites, paint patches on the surface of spacecraft, liquid materials leaked from spacecraft and other substances.

These fragments of space junk run at orbital speed, the kinetic energy is huge, there is a risk of hitting other spacecraft, and some space junk will pose a threat to ground safety when it returns to the atmosphere, so it is mainly handled in the way of evasion.

Space junk is classified according to its hazard level。In order to prevent the growth of bacteria during garbage storage, preservatives need to be added to the disposal of garbage such as food waste and excrement, which are of high hazard level. Ordinary garbage such as paper towels and plastic packaging bags can be put into garbage bags, vacuumed, and compressed to reduce the volume and facilitate storage.

Astronauts classify and store garbage in space, which is naturally indispensable with the help of "artifacts". In the "Space House", astronauts will use garbage bags, garbage compressors, debris collectors and other tools to facilitate the storage and disposal of garbage.

Waste compressors can be used to compress garbage bags filled with post-meal waste to reduce the volume of garbage storage. The debris collector can be used to collect food scraps or water droplets suspended in the air, as these debris can be harmful to the astronaut's body if inhaled into the lungs of the astronaut, and can also pose a threat to the operation of the equipment if the debris floats into the cracks of the equipment in the "space home".

Recycling and reuse of space liquid waste

Water is very precious in space, and the sweat and exhaled water vapor of astronauts can be purified into drinkable reclaimed water, and urine can also be collected and processed into drinkable pure water. In this way, liquid waste is recycled.

Domestic garbage is mainly collected, compressed, and hoarded, and then incinerated with the Tianzhou cargo spacecraft when it re-enters the atmosphere to reduce pollution to space.

Space junk travels at speeds of more than 20,000 kilometers per hour. These objects in Earth orbit pose a constant threat to the security of the satellite itself, the space shuttle and the International Space Station. The world's space powers have recognized the seriousness of the dangers of space junk and have formulated various measures to control space junk.

Measures taken by countries to deal with space junk.

1.NASA came up with one"Cleanup"An aggressive approach to near-Earth space. It will increase the friction of space junk by sending pulses of atmospheric gas into the path of the target debris, causing it to descend into the Earth's atmosphere.

2.Researchers at Surrey Satellite Technology in the United Kingdom have designed a miniature electric propulsion device for small satellites that can safely bring satellites back into the Earth's atmosphere and burn them up in the air, thus avoiding space junk and controlling the congestion of satellites in low-altitude orbits.

3.China was established in early March 2005 at the Purple Mountain Observatory of the Chinese Academy of Sciences"Space junk"The observation center will establish a security early warning system for China in the field of space and aerospace. The Aoron 1 space debris removal vehicle was launched with the Long March 7 carrier rocket in June 2016 and began operation.

4.The Russian Space Agency has developed a program called"Sweeper"of spacecraft. The spacecraft, after approaching the scrapped satellite, will target"Catch", send it to a higher orbit so that it does not affect the flight of other spacecraft, or push it off orbit, send it in the direction of the Earth, and finally put it completely"Buried"in the waters of the Pacific Ocean"Spacecraft graveyard"。

5.A remote-controlled radar in Okayama Prefecture, Honshu, Japan, has been working since April 6, 2011, and will be controlled from a distance by the space center in Ibaraki, near Osaka, Japan.

In February, Swiss scientists announced plans to develop a device like a household vacuum cleaner, or a jellyfish tentacle to clean satellites, to clean outer space and clean up space junk such as abandoned satellites and rocket wreckage.