Refitting and designing satellites directly in space is a higher technology than launching rockets, but when the technology reaches a certain level, it is really cheap.

Moreover, one less rocket launch will also produce less space junk.

Even recyclable rockets are the same, they will also produce space junk, but the difference is more and less than disposable rockets.

Not to mention that rockets will produce garbage, even satellites themselves can become garbage. After all, humans have launched satellites for decades and have been scrapped, but there are still not a few satellites still in space orbit.

In fact, those obsolete satellites are not completely unusable. Some are just because they ran out of fuel, and then they slowly lowered their orbits, waiting for the day when they were completely burned into the atmosphere.

Many satellites like this can be used again if they are brought back for inspection and then refilled with some fuel.

One more repaired satellite, one less...no, a lot of space junk.

And to be honest, satellites are really expensive, and building one less can save a lot of money.

Communication satellites are generally more expensive, because they require relatively large platforms. However, when human beings enter the information society, their demand is large, so "the more expensive is equal to the very expensive".

Hey, don't worry about being too expensive for communication satellites, there is something more ruthless than this.

The most expensive type of satellite is the optical strategic reconnaissance satellite.

This kind of satellite, the cheapest one is 5 billion US dollars!

The most expensive one is more than 10 billion US dollars!

The well-known Hubble Telescope is actually an optical reconnaissance satellite, but it is quite special. To put it simply, it points the observation angle of the Earth observation reconnaissance satellite to the outer space. If you say more, it will last for several days. .

You just need to know that it is expensive.

In the era when Meriken’s space shuttle was still working, Hubble was repaired and repaired at all costs, because even if the huge space shuttle was used to fly four or five times to repair Hubble, it consumed more resources than it did. It is more economical to relaunch one if you scrap it.

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

Why are large-capacity communications satellites and strategic optical reconnaissance satellites so expensive?

That's because communication satellites are expensive on large-capacity carrier tubes, and you need to use 50 for one. It is important to know that the "active Aegis system" on a warship of several thousand tons is only equipped with about 8 similar carrier tubes.

Optical reconnaissance satellites are more expensive on super-large-diameter lenses. After all, for lenses with a diameter of several meters, each grinding period is as long as one or two years. The sub-nanometer and nanometer mirror accuracy almost represents the limit level of human precision processing. .

Think about how much money will be used here.

At present, there are no less than 4000 medium and large satellites in the sky. In fact, only about 1000 are still effective. There are even more small satellites, and those things drop faster.

Among the nearly 3,000 big guys scrapped, no less than half can be used for repairs, and the most valuable is repairing large-caliber reconnaissance satellites and large-capacity communications satellites.

If the orbit of a large-capacity communication satellite is too high and it will not be reachable in a half-time, then it is of great value to repair the obsolete reconnaissance satellite whose orbit height is only 900 kilometers or less.

Even the lenses can be removed and reused, each of which is worth billions of dollars.

So don’t look at the navigator’s commercial cabins, but the industrial cabins that they launched, thinking that they don’t make money anymore. In fact, if it works well, it makes money much more money than commercial cabins.

The most important thing is that the smaller commercial cabins are packaged out, and the manufacturing contracts are in the hands of other smaller private aerospace companies.

They have obtained some of the technologies that Navigator and Tianxia Aerospace have officially sunk, and they can already make such orders.

At the beginning, I said that I would use the Tianting Space Station plan to raise people, raise technology, and raise companies. That’s what I said.

Those small cabin pilots will not be mixed up. The large cabins in the industrial zone are its home ground. After all, others can't do it.

The maintenance module was parked "beside" the Tiangong space station. Although it was not close, it could be seen by the astronauts and space tourists inside.

Even using some photography equipment and telescopes, you can see more clearly.

The live broadcast footage now comes from a set of optical telescopes and cameras on the space station.

In the shot, it really did not dock with the upgraded Tiangong space station, but opened the door of the maintenance bay from its own position.

The silver-white maintenance compartment door began to open, and its opening speed was slow, but because the door was large, every opening angle was obvious.

After the hatch was opened to an angle, netizens were a little shocked, because the maintenance compartment was not as empty as people thought, but there was a spacecraft.

It looks a bit like the Benyue spacecraft, but it is a bit smaller in proportion and more complicated in appearance.

There are several mechanical arms and mechanical frames outside it, which at first glance is space engineering equipment, rather than a simple spacecraft.

"Is this the engineering spacecraft to be equipped in the plan? I didn't expect it to be launched directly into the maintenance bay, Niubi!"

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

"This kind of dolly launch requires very high stability of the rocket, and this is the first flight of the rocket. I have to say that the navigator's courage is really not ordinary."

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

"It should be unmanned. Now the unmanned technology is very mature. If the manned module is added, the design and manufacture of the spacecraft will be several times more complicated, so I feel that it is almost the same if it is designed for unmanned or remote control."

"Indeed, this is not a battlefield. You don't need to pay too much attention to flexibility, so it doesn't matter whether there is anyone, or even no one can maximize its performance."

"No matter if it has people or no one, I just want to watch it catch satellites. The robotic arms above are used to catch satellites, right? Get it up!"

After the spacecraft slowly flew out, Navigator Aerospace gave its specific data.

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

In other words, a "small thing" with a length of 9 meters and a diameter of 5 meters is 20 tons heavier than a star hotel with a length of 25 meters and a diameter of 7 meters.

The reason it is so heavy is because it is "solid" and it does not have a pressurized cabin for people.

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

Yes, because it is going to rush into the space trash belt, it carries strong outer armor.

Its structure and shell are not the structure of ordinary space equipment, it is built in accordance with the protective performance of armored vehicles.

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

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

The three wheels are used to walk, and the three thrusters are also used to "walk".