Retrofitting satellites directly in space is a higher technology than launching a rocket, but when the technology reaches a certain level, it is really cheap.

And one less rocket launch, and less space junk is generated.

Even recyclable rockets are the same, they all produce space junk, but they produce more or less than disposable rockets.

Not to mention that rockets produce garbage, even the satellites themselves can become garbage, after all, human beings have launched satellites for decades and have been scrapped, but there are still a few satellites that remain in space orbit.

In fact, those scrapped satellites are not completely unusable, some are just because the fuel is used up, and then they slowly lower their orbits, waiting for the day when they will completely enter the atmosphere and be burned out.

Like a lot of these satellites, it is perfectly possible to fish them back and overhaul them, and then fill them with some fuel.

One more repaired satellite, one less...... No, a whole bunch of space junk.

And seriously, satellites are really expensive, and you can save a lot of money by building one less.

Generally, communication satellites are more expensive, because the platforms they need are relatively large, but when human beings enter the information society, they are in great demand, so they are "more expensive than more expensive equals very expensive".

Hey, don't be in a hurry to think that communication satellites are expensive, there are more ruthless than this.

The most expensive class of satellites are optical-strategic reconnaissance satellites.

This kind of satellite, the cheapest $5 billion one!

The most expensive one is more than $10 billion!

The well-known Hubble telescope is actually an optical reconnaissance satellite, but it is quite special, and to put it simply, the observation angle of the earth observation reconnaissance satellite is directed towards space.

You just need to know that it's expensive.

In the days when Merriken's space shuttle could still work, Hubble was repaired and repaired at any cost, because even if the huge space shuttle was consumed to fly four or five times to repair Hubble, the resources it consumed would be more economical than if Hubble was scrapped and re-launched.

And the most modern giant optical reconnaissance satellite, the value of one is already comparable to the cost of a nuclear-powered electromagnetic catapult aircraft carrier!

Why are high-capacity communication satellites and strategic optical reconnaissance satellites so expensive?

That's because communication satellites are expensive on large-capacity carrier tubes, and one requires 50 of them, and you must know that the "active Aegis system" on a warship of several thousand tons is only about 8 carriers of the same type.

After all, the grinding period of several meters in diameter lenses is as long as one or two years, and the mirror accuracy of sub-nanometer and nanometer level almost represents the limit level of human precision machining.

Think about how much it costs here.

At present, there are no less than 4,000 medium and large satellites in the sky, and only about 1,000 are actually effective, and there are even more small satellites, and those things fall faster.

Of the nearly 3,000 scrapped big guys, no less than half can still be used for repair, and the most valuable thing is to repair large-caliber reconnaissance satellites and large-capacity communication satellites.

If the orbit of a large-capacity communications satellite is too high and it will not be reached for a while and a half, then the restoration value of a scrapped reconnaissance satellite with an orbital altitude of only 900 kilometers or less is extremely valuable.

Even just the lenses that can be removed and reused are worth billions of dollars.

So don't look at the fact that the Navigator did not launch a commercial cabin, but an industrial cabin, and think that people don't make money, but in fact, if it runs well, it can make money much more than a commercial cabin.

The most important thing is that the smaller commercial cabins are all out of the box? Manufacturing contracts are in the hands of other, smaller private space companies.

They got some of the technologies for the official sinking of the Navigator and Tianxia Aerospace? It is already possible to make such an order.

At the beginning, he said that he would use the Tianting space station plan to raise people, technology, and companies? That's what I'm talking about.

Those small cabin pilots are not mixed, and the large cabins in the industrial area are its home turf, after all, others can't do what they want to do.

The maintenance module is parked "next to" the Tiangong space station? Not close though? But it just happened to be seen by the astronauts and space tourists inside.

Even with some photographic equipment and telescopes, you can see more clearly.

The current live footage comes from a set of optical telescopes and cameras that come with the space station.

In the camera, it really did not dock with the upgraded Tiangong space station, but opened the hatch of the maintenance module from its own position.

The silvery-white repair hatch is starting to open? It doesn't open fast, but because the hatch is big? So every point of opening angle is obvious.

After waiting for the hatch to open at an angle, netizens were a little shocked, because the inside of the maintenance cabin was not as empty as people imagined? Rather, there is a spaceship.

It looks somewhat like the Moonshot spacecraft, but is a little smaller in scale and more complex.

It has several robotic arms and mechanical frames on the outside, and at first glance it looks like space engineering equipment, not a simple spaceship.

"Is this the engineering ship that is planned to be equipped? I didn't expect it to be directly stuffed into the maintenance cabin and launched, Niu Pi! ”

"I thought it was empty, but I didn't expect the navigator to surprise me again and again."

"This kind of nesting doll launch has very high requirements for the stability of the rocket, and this is the first flight of the rocket, I have to say that the courage of the navigator is really not ordinary."

"I don't know if this spacecraft is manned or unmanned, and when will it start its mission, I want to see."

"It should be unmanned, and now the unmanned technology is also very mature, if you add a manned module, the design and manufacture of the spacecraft will be several times more complicated, so I feel that the design is almost unmanned or remotely controlled."

"It's true that this is not a battlefield, and you don't need to pay too much attention to flexibility, so it doesn't matter if there is anyone or not, or even no one can get the most out of it."

"It doesn't matter if it's manned or not, I just want to watch it catch satellites now, and those robotic arms on it are used to catch satellites, right? Hurry up and get started! ”

After the space boat slowly flew out, the navigator space gave its specific data.

The length of the dinghy is indeed not as large as that of the Moon, it is only 9 meters long and only 5 meters in diameter, but the weight is not small, reaching an astonishing 100 tons.

That is to say, a "little thing" with a length of 9 meters and a diameter of 5 meters is 20 tons heavier than the Starry Sky Inn, which is 25 meters long and 7 meters in diameter.

It is so heavy because it is "solid", it does not have a manned pressurized cabin.

It can fly unmanned, or it can be remotely flown and then rush into the space junk belt to "salvage" the scrapped satellites mixed in the space junk.

Yes, precisely because it was going to the space junk patch, it carried a sturdy exterior armor.

Its structure and shell are not the structure of ordinary space equipment, it is built according to the protective properties of armored vehicles.

Even the three main thrusters behind it are bulletproof and will not be damaged by a collision with space junk.

It is precisely because the three main thrusters behind it are so conspicuous that before the navigator announced its name, netizens gave it a nickname, called "Space Three Jumpers".

The three wheels are used for walking, and the three thrusters are also used for "walking", almost, all about the same.