What's more, the earth is the home planet of human beings, and human beings without the home star are no different from floating fallen leaves.

If within twenty years, a super-strong metal has not been invented, or a large-scale planetary engine array cannot be built, then there is only one way to perish that awaits mankind, and there is no other choice.

And twenty years is too urgent for Ye Fan.

At the same time, this is also one of the reasons why Ye Fan wants to develop Mars.

In the future, it will not only be the Earth that will escape from the solar system, but also Mars and the Moon, the former is the base camp of mankind, and the latter will be the real "navigator" space station of mankind.

If you really can't build a huge planetary engine by then, then you can retreat and shift your attention to Mars.

Mars is much smaller than Earth in terms of volume and mass, which means that only half of Earth's resources need to be consumed to push Mars away.

And Mars is also enough to accommodate today's five billion people, as long as today's human beings are not free of themselves and desperately have children, it is possible to pretend to be all possible.

It's just that the best thing is to be able to push the Earth and Mars to leave together, if not, at least human beings still have Mars in their hands.

In many cases, if some things are not considered from a macro perspective, then no matter how you think about it, it is a dead end.

Ye Fan didn't know that human beings were facing an existential crisis, so everything he thought and did inevitably fell into the so-called "internal friction".

However, when he knew that humanity might be wiped out in twenty years, all he was thinking about now was how to lead humanity to escape this catastrophe, or rather, to lead his entire nation to escape this catastrophe.

The so-called position determines one's own thinking.

With his technology, he can build a battleship, and then take his family and friends, drive the battleship, and escape from the solar system.

However, he couldn't do such a thing, because the universe is very vast, and the entire human race in the universe is a grain of sand that can't be smaller, let alone him.

After the destruction of civilization, even if a few individual individuals escape, then this civilization is also equated with "extinction".

It's not that he hasn't thought about exchanging the black technology of new materials from the system.

But the system doesn't know what crazy it is, the new materials are expensive, especially the metal that fully meets Ye Fan's needs, and it needs 10 million prestige points.

And the black technology of the planetary engine is only five million prestige points.

Counting the new materials, plus the planetary engine, and the ecological maintenance system after the planet is propelled, and a lot of miscellaneous things, the total amount of reputation needs is 25 million.

Twenty years, in fact, only the first five years can allow Ye Fan to save prestige points, because the sun will be destroyed in more than twenty years, and it is impossible to save all the prestige points at the last moment, and finally exchange it

From the finalization of the project, to the global construction, to the global project, to the completion and preliminary trials.

This time will not be reduced for more than 10 years, and if it is a particularly urgent situation, it may shorten the manufacturing cycle, but it is not much worse.

What's more, how did Ye Fan accumulate 25 million reputation points in just five years

"It's a real headache." Ye Fan rubbed his forehead and couldn't help sighing, with the current growth rate of points, it would increase by more than five thousand prestige points every day.

Originally, the daily reputation value was close to 10,000 per day, but after the natural disaster, more than two billion people died, and many of them must be Ye Fan's fans.

Therefore, the prestige value that Ye Fan can increase every day has also decreased a lot.

"You can only take one step at a time, there are always more ways than difficulties." Ye Fan closed his eyes, not knowing what he was thinking.

Huaxia, Northern Xinjiang Plateau.

At 12 o'clock in the morning, the northern frontier is desolate and dark, but the advantage of high altitude and distance from the light pollution of towns is that when you raise your head here, you can see the beautiful starry sky that people in the city can't see anytime and anywhere.

Whenever people look up at the starry sky here, they all sigh at the wonder of nature and the vastness of the universe.

In the dark night, there is an area, still in a state of bright lights.

This is an air base in northern Xinjiang, responsible for the sky defense of the entire northern Xinjiang.

"Whoosh"

A Y-20 large transport plane, under the guidance of the airport tower, landed steadily at the Beijiang airport.

After the plane came to a standstill, the hatch of the transport compartment slowly opened, and from it stepped down one young soldier after another, both men and women, all carrying their bags, and followed the instructions to the front of the building of the air base.

A group of 200 men had gathered here, all of them lined up in a neat line, as if waiting for the arrival of the newly landed soldiers.

In front of the team of 200 people, there was a girl in a military uniform, and the breeze blew, making her feel quite heroic.

If Ye Fan was here, he would definitely be able to recognize this as Tang Xue at a glance, she was temporarily transferred to Northern Xinjiang two days ago to serve as the chief instructor of the first batch of Space Forces.

"Report to the chief, the third brigade of the Space Force is in place, please instruct" An officer from the team that had just landed saluted Tang Xue and said loudly.

"Queue"

The newly joined soldiers stood in the rear in turn, waiting for Tang Xue's arrangement.

"Everyone, welcome to pass the hellish assessment and become the first batch of our Chinese space forces, you can come here, every one of you represents,

They are all the best of the best, and they can accomplish things that we ordinary people can't do. Tang Xue looked at the soldiers present and applauded them with a smile.

"Originally, your assembly date was in a week, but three hours ago, I received a supreme order to select a hundred people from among you to form a team, and I need you to complete a fruitless task."

Tang Xue looked at them and didn't continue, and at the same time, everyone was also looking at Tang Xue.

Finally, an officer said, "Chief, what kind of mission is it that has no results?"

"It's your job to stay alive." Tang Xue looked at the officer and looked at everyone present, "I won't sell anything to you, in order to deal with the crisis that our human race may perish at any time, we need a group of people who can take on the responsibility of continuing civilization." ”

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