Su Meng is currently able to let her sister Su Tian live for three hundred years at most, which of course has no way for her to fully accept it.

Although most of her consciousness feels that it is good to accompany her sister for the past three hundred years, and there is no need to be demanding, there is still a part of the consciousness hidden in her heart that hopes that her sister can live longer.

Although Su Meng can't do it himself, it doesn't mean that others can't do it, how big the universe is, just in the Milky Way, I'm afraid there are more than 200 billion stars, so how many planets, how many civilizations exist, and what kind of technology and knowledge do they have? Maybe what Su Meng can't do, but they can do it.

The spaceship made by Su Meng was very large, and it took her more than ten days to travel back and forth between Mars and this void hundreds of times before it was completely manufactured.

Looking at the cube-shaped spaceship in front of him, with a size of tens of thousands of meters, Su Meng showed a satisfied expression.

"Sister, let's go in." Su Meng said.

"Hmm" Su Tian nodded, and then was carried by Su Meng and walked towards the command level of the spaceship.

Due to Su Meng's ability to influence the rules of physics, all of this spaceship adopts a doorless design, that is, the spaceship itself is integrated, except for Su Meng, no one can enter or exit the spaceship, and even all the rooms on the spaceship are closed.

Su Meng landed on the hull of the spaceship, and a crack opened in the hull, like a door, but in fact, this door did not exist, it was only created by Su Meng changing the rules of physics.

Walked into the spaceship through this door, passed through four or five made doors, and then Su Meng came to the control center.

This is the core part of the spaceship, connected to a network of giant computers located inside the spaceship, as well as a number of integrated detection devices distributed on the ship's hull.

The internal structure of this spaceship, after Su Meng's re-analysis and design, is far from the previous style of the earth, although there is not much difference in principle, but in terms of form, it has reached the most simple and efficient collection.

Most of the interior of the spacecraft is vacuum, and there is no gravity inside the spaceship.

In the control room, Su Meng was holding Su Tian and was standing in front of a simple platform, on the platform, there was a pillar more than half a meter high, and there was a laser projection device at the top of the column, and the laser projection device projected a 3D virtual image, Su Meng could operate it directly with his hands.

This device is the only control in the entire room, and the only control in the entire ship.

Su Meng first ran the spacecraft's self-test program, and soon the spacecraft's self-test report came out, and the spacecraft was currently in good condition without any faults.

It is difficult to accelerate a spaceship of tens of thousands of meters to a higher speed, but the good thing is that Su Meng used a special propulsion device for this spaceship.

That's hundreds of particle engines of the same level that Future used before, and since gravity doesn't have to be taken into account, and air resistance is not taken into account, the ship can theoretically accelerate indefinitely, provided it has enough energy, of course.

Mirai is limited by time and energy, and its top speed can only be 50 km/s, but Su Meng's new spacecraft only needs about a year to accelerate to 30% of its maximum speed of light.

The maximum speed of this spaceship is slower than Su Meng's direct flight, but the advantage is that it can give Su Meng and Su Tian a better state of survival, and in the state that the speed gap is not particularly outrageous, Su Meng prefers to take such a spaceship for interstellar voyages.

Su Meng's plan for the future, like the previous Bright Alliance, is to first go to the Alpha Galaxy in the constellation Centauri where Proxima Centauri is located, which is the closest star system to the Earth after all, and it will be a good choice to go there to replenish energy and matter.

Su Meng didn't give the new spaceship a name, because the spaceship would be abandoned by her sooner or later, and there was no need to give it a name.

Su Meng has stored more than 1 billion tons of nuclear fission fuel on this spaceship, which can theoretically accelerate the spacecraft to 30% of the speed of light, and then slow down to 0, so that thousands of times will not run out of energy.

Those waste materials after nuclear fuel fission are also mass, Su Meng can convert them into energy first, and then into matter again, which will have about 0.3% mass loss, so to a certain extent, with Su Meng's new spaceship, it means a strong interstellar navigation ability.

Traveling to the Alpha Centauri galaxy takes about 14 years to sail at 30% of the speed of light, and it doesn't require Su Meng to consume his spirit all the time, so it is also a really feasible way.

Su Meng pressed the start button, and the hundreds of giant ion engines of the new spaceship began to work, and with a slight vibration, the new spaceship began to accelerate.

Su Meng felt a very weak gravity, about one-third the size of the earth's gravity.

At this moment, this gravity appeared from the ground, so Su Meng did not feel uncomfortable.

Su Tian felt the appearance of gravity and said, "Sister, the spaceship is starting to accelerate." ”

"Yes," Su Meng nodded.

The main control room of the ship is designed to be on the ground in the opposite direction of the engine's thrust revers, so that once the ship starts to accelerate, the gravity will be "downward".

"Sister, are we just waiting?" Su Tian asked.

"Hmm" Su Meng nodded, there was really nothing to do next.

So Su Meng and Su Tian left the main control room and went to a room next to them.

That room was a rest area that Su Meng had built a long time ago, and the room was very large, hundreds of meters long and wide, and hundreds of meters high.

Or it can no longer be called a room, but should be considered an area.

There is an ocean next to the ocean, and next to the beach is a villa with exquisite shapes.

Su Meng took Su Tian and flew to the door of the villa, and then fell.

"Sister, is this the place where we will rest in the future?" Su Tian said.

"Hmm" Su Meng nodded, took Su Tian's hand, and walked in.

Inside the villa, the decoration is very exquisite, and there is a warm atmosphere.

Su Tian felt as if he had returned to his home on Earth, and the layout of the villa was almost exactly the same as the villa that had been on Earth.

Su Meng and Su Tian went up to the second floor and entered their room.

Outside the window is a quiet starry sky, and the window is a special projection device, showing the starry sky, as if it were real.

At night, fifteen-year-old Su Meng and thirteen-year-old Su Tian hugged each other to sleep, although Su Meng could not really fall into unconscious sleep, but she could relax her mind, lie on the bed with her sister in her arms, and feel a special emotion, even if there are only two human beings left in the entire universe, she also has a reason to continue to live.

Sometimes loneliness is a person's worst enemy, Su Meng doesn't know how to continue to live if her sister leaves her, she feels that it seems to be an abyss that can't be seen.

Su Meng gently hugged Su Tian, as if she was embracing the whole world. When Su Tian woke up the next day, she didn't see Su Meng, and there was a note on the table: "Sister, sister went to do the experiment, obediently." ”

Su Tian pursed her lips, then sat down at the table, put her hand on her head and didn't know what she was thinking, after a while, she got up and walked into the shower room of the room, and soon after there was a sound of water inside.