Just today, the mortal starry sky suddenly made a statement that there was going to be a new big move at night. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

And the big move is on the 20th!

That's right, it was when Obama stepped down and Donald Trump came to power.

In its current form, it can hardly be said that the actions of the mortal starry sky are friendly, and even more than ninety percent are malicious.

But the meaning behind this is intriguing.

Is it a farewell gift to Obama or a gift to welcome Donald Trump?

In other words, is it a retaliation against Obama or a warning to Donald Trump?

Or is it both?

It's hard to say.

After all, mortal science and technology have always been whimsical and do not play cards according to the convention!

On the other hand, Obama and Donald Trump, who got the news, both had a drastic change in their faces, as if they were facing a great enemy.

Of course, he was even more angry.

Obama was angry, naturally at this time, Wang Fan still didn't let him go, and he had to come to see him off for the last time.

Donald Trump is angry that Obama is to blame, could it be that as soon as he takes office, he will take the blame for it?

Even the White House looked nervous.

Frankly speaking, the transition between the two governments is the weakest and the easiest time for things to happen.

However, Wang Fan chose this time to make trouble, which can be completely understood as a provocation to the US government.

If other existences dared to find trouble at this time, the US government would have dispatched F-22s and even naval and air forces long ago, and then ran to other countries to enforce the law and maintain world peace.

But for mortal technology, for Wang Fan, he really didn't dare!

No way, military GPS is under the manipulation of others, what else can you do?

Without navigation, everything is in vain!

But for such a situation, both sides have no choice but to wait for the time to come, and then act at the opportunity!

As a result, the global focus of the day was divided into two parts.

Part of it is to look at the handover of the US president, after all, as a superpower, the United States, the change of head of state is still very important.

The other part is the big move to see the mortal starry sky!

After all, mortal technology has never disappointed, let alone mortal starry sky!

It's just that I don't know what kind of big moves the mortal starry sky will make today.

What's more, from beginning to end, the Mortal Star Sky official did not make any explanations or explanations.

It wasn't until 12 noon that some information was released from the mortal starry sky, but it was about space junk.

Space junk, also known as space debris or orbital debris, is a man-made object in the universe other than the working spacecraft, including the debris generated by launch vehicles and spacecraft and scrapped satellites, the peeling off of spacecraft surface materials, the paint plaques that fall off the aging of the surface coating, the solid and liquid materials leaked from spacecraft, and the debris generated during the explosion and collision of rockets and spacecraft.

It can be said that space junk is composed of satellite debris, paint chips, and dust, and as large as the entire spacecraft wreckage.

The meaning is very simple, space junk has another main characteristic: first, it is man-made.

The second is useless!

Like a lot of satellites, scrapped, out of control, stopped working......

As long as it loses its effect, it is all space junk.

But these satellites, or debris, dust, and so on, still exist in space.

From October 4, 1957, the former Soviet Union successfully launched the world's first artificial earth satellite "Sputnik 1", and its abandonment was the beginning of "white pollution" in space.

What followed was a massive explosion of space junk.

In particular, with the rapid development of space technology in various countries around the world, space launch activities have become unprecedentedly prosperous.

Countries that have the ability to launch on their own, launch on their own.

If you can't launch it yourself, you will also entrust other governments or enterprises to launch!

At present, there have been more than 4,000 space launches in the world, and more than 6,000 spacecraft have been launched, but less than 3,000 spacecraft are in orbit, and only about 1,000 are working normally!

In other words, more than 5,000 other spacecraft have become space junk.

What's even more ironic is that there are still 2,000 still in orbit!

Although most of the scrapped spacecraft crashed into the atmosphere and burned up, there are still nearly 4,500 tons of space junk in orbit around the Earth.

According to big data statistics, as of November 2016, about 100 million pieces of space junk orbited the Earth, of which 27,000 were more than 10 centimeters in diameter, tracked by NASA and the Department of Defense. Each piece of space junk is running at a speed of 28,000 km/h.

A simple analogy is that the orbit of space is a road.

And the spacecraft running in orbit is the car.

Space junk is scrapped cars!

These scrapped cars are still in orbit, which will inevitably affect the normal operation of other spacecraft.

The existence of a large amount of space junk not only occupies orbital resources, especially geosynchronous orbit, thus affecting the launch of subsequent spacecraft, but also affecting the normal operation of other launched spacecraft, and even causing major accidents.

There are countless such examples.

As early as 1983, the American spacecraft "Challenger" collided with a 0.2 mm diameter paint peel, resulting in damage to the porthole and had to stop flying.

The former Soviet Union's "Salyut-7" orbital station has also been damaged by such "dust" many times.

In 1986, the "Ariane" rocket exploded shortly after it entered orbit, becoming 564 pieces of 10 cm in size and 2,300 pieces of small fragments.

On September 15, 1991, the space shuttle "Discoverer" launched by the United States almost collided with the rocket wreckage of the former Soviet Union, when the "Discoverer" and this "uninvited guest" were only 2.74 kilometers away!

On February 10, 2009, two communications satellites of the United States and Russia collided in space and produced a large amount of space junk, which is very likely to pose a threat to the International Space Station.

……

It has been calculated that for every flying object in orbit, there is a 3.7% chance of a catastrophic collision event and a 20% chance of a non-catastrophic impact event.

Based on this calculation, there may be a collision between space junk and spacecraft every 5~10 years in the future, and it will reach once every 2 years by 2020.

And Wang Fan's global WIFi plan requires thousands of communication satellites.

However, at present, there are only more than 1,000 satellites in normal operation in the world, and once the global WiFi project is deployed and launched, the sudden increase in the number of satellites will inevitably double the incidence of space traffic accidents!

Wang Fan has more than 1,000 satellites, a large base, and is most likely to win the jackpot.

When the time comes, if you lose money every day because of this incident, it will be a fool.

In addition, if space junk is not effectively cleaned up, it will be difficult for Wang Fan's more than 1,000 communication satellites to find sufficient orbital resources.