All experimental data stored on the computer was destroyed, resulting in a major blow to curvature-driven research.

This means that if you want to continue working on the curvature engine, you need to do the experiments you have done over the past three years and do it all over again.

It will be faster to redo the experiment and gain experience than to start from scratch, but that will also take at least a year or more.

However, what humanity lacks most right now is time.

Yang Yuping fell into despair for a while and almost collapsed.

Today is the military exercise of the human space fleet, and Fang Yuan has almost brought the old professor over.

The main thing is to let the old man relax.

"The experimental data is gone, we can still do the experiment again, there is nothing to worry about, just start over. Today is the space fleet military exercise, in fact, we are not weak now, even if the purge civilization comes, we will fight first. ”

Fang Yuan stood on the Earth's spaceport, stretching out his hand and pointing at the battleship moored on the tarmac in front of him.

Looking at the battleships shining with metallic luster, as well as the endless starry sky ahead, Yang Yuping's mood was indeed a little brighter.

Humanity is indeed much stronger than it was three years ago, with spaceports, moon bases, and a fleet of 1,000 space warships.

Among them, the largest flagship, the Blue Star space carrier, with a total length of 1.2 kilometers and a volume 30 times that of the largest aircraft carrier in the ocean era, is an absolute space giant.

The ship's entire crew needs 18,000 people to operate at full capacity, not including combat personnel.

The Blue Star is also equipped with 500 carrier-based combat ships and 1,000 unmanned attack aircraft in space.

Except for the Blue Star.

In the human space fleet, there are also 5 Arctic Ocean-class space battleships.

36 space cruisers, 125 space destroyers, 800 space combat ships.

Several of the Shenzhou-class ships belong to the category of destroyers, however, they did not continue to be mass-produced in the future, this model.

Because, after too many magic changes in the military scientific research class, there is no possibility of mass production of the Shenzhou with the number of strong nuclear force materials used in the hull alone.

Therefore, the Shenzhou and Chixian have become military scientific research space destroyers.

Many advanced technologies will be put on the Shenzhou for testing, and after the technology is mature, it will be transferred to other types of warships.

Today, the human space fleet conducts military exercises with the aim of taking on the approaching Cleaner spacecraft.

The space fleet flew out of the spaceport in a neat manner, covering the sky and the sun.

The light of the engine illuminates the entire sky.

The footage of the military exercise was broadcast in real time on global television stations, and countless people burst into tears.

If it had been ten years ago, who would have thought that humanity would one day have such a magnificent space fleet.

All mankind is talking about this military exercise.

However, the news about the arrival of the civilization of the Cleaners is already strictly confidential.

Therefore, ordinary people do not know what is behind this military exercise.

Some people praise it, and naturally some people belittle it, and the content of the discussion is strange.

"The appearance of such a thing as a battleship in the space fleet is not a step backwards in history?"

"The re-entry of battleships on the stage of history is inevitable for them to go into space."

People who know a little about space battleships began to explain to their friends: "Space is a vacuum, and the disappearance of air resistance is doomed to the return of kinetic weapons."

"In the age of the oceans, why did battleships once dominate the seas? Because of its resistance to beating, the huge thick armor can withstand the bombardment of shells.

"The appearance of missiles has brought artillery off the altar, because missiles can sink targets completely outside the range of artillery, resulting in no use for battleship armor.

"Space is different, air resistance kills artillery as a kinetic weapon, but space brings kinetic weapons back to the stage of history.

"On the contrary, in space, missiles have some disadvantages, the initial velocity of the missile is lower, it is easy to be intercepted, and it needs to propel the engine, which requires more energy and resources.

"In terms of cost performance, missiles can't be compared with kinetic guns.

Therefore, the return of the kinetic cannon has become inevitable, and the ultra-thick armor of the defensive kinetic cannon has also naturally returned.

"Therefore, it is not at all surprising that the battleship has reappeared on the stage of history.

"Since the Supreme Council has built space battleships, it must have done an analysis."

On the question of the class of ships of the space battleship.

In the past few years, there has been a lot of discussion and a lot of model analysis.

After the technology of electromagnetic guns becomes more and more mature, the power of kinetic weapons is indeed increasing, and the shells of kinetic weapons are indeed more economical than missiles.

For ordinary people, the current space fleet of mankind is indeed spectacular.

However, in the eyes of those who really know the truth, there is still a sense of worry.

Yang Yuping looked at this space fleet condensed by countless technologies, and felt emotion in his heart, but at the same time, he couldn't let go of the worries in his heart.

"Can our fleet really beat the Cleanser civilization?"

Actually, this question does not need to be answered at all.

Rahu's smuggling aircraft used antimatter bombs, and the weapons of the Cleaner ship could not be less powerful than antimatter bombs.

In the face of antimatter bombs, it is difficult to carry strong nuclear armor, and even the most heavily armored battleships in the space fleet are not optimistic in the face of antimatter bombs.

Thankfully, humans also have antimatter bombs.

As a result, the human space fleet cannot withstand the attacks of the Cleaners, but it also has the weapons to penetrate the defenses of the Cleaners.

Therefore, this battle can still be fought, but it will certainly not be easy.

"Did the Academy of Military Sciences say when the Cleaner spacecraft will arrive in the solar system?" Yang Yuping asked instead.

"It has been analyzed and is expected to arrive in three months." Fang Yuan replied.

Three months is not too short.

But in the face of a civilization-level crisis, there is actually nothing big to change the situation.

"Has the Tinder departed?" Yang Yuping asked again.

"Going, I left last night, heading towards Arcturus." Fang Yuan replied.

Tinder, as the name suggests, is the spaceship that carries the flame of human civilization.

In fact, the Tinder Project has always been carried out in secret.

Standing on the high plane of civilization, continuing the flame of civilization is an issue that must be considered by the decision-making class of civilization.

The Tinder is an armed transport converted voyage ship carrying 300,000 human fertilized eggs, as well as the history, culture, and technology of human civilization, to find a new habitable planet.

It's just that it can't fly out of the solar system for three months, so we can only hope that the Tinder has not been discovered by the Cleanser civilization.

Those who remain on Earth are bound to fight to the end with the Cleanser civilization, but they must also prepare for the worst.

The Tinder Project is the worst-case scenario.

……