If human beings could invent a spaceship that flew one light year per second, would they be able to

No. Because the universe is infinite, no matter how fast the spaceship is, it cannot fly out of the universe.

I think it is possible that if we could invent a spaceship that could fly a light-year in a second, then such a speed would definitely be able to fly out of the vast universe.

Absolutely. If there really is such a spaceship, then humans can go to any corner of the universe. And it's very fast.

With current technology, it will take at least 10,000 years to complete a light year, which is a long wait for humans.

The radius of the solar system is about 1 light-year, so it only takes 1 second to fly out of the solar system. In this way, we will reach Proxima Centauri in 4 seconds and Sirius in 9 seconds with this spacecraft. In 7 minutes, we will fly to Polaris Hook**.

It will fly to Betelgeuse in the constellation Orion in 10 minutes.

The radius of the solar system is about 1 light-year, so it only takes 1 second for it to fly out of the solar system. In this way, we will reach Proxima Centauri in 4 seconds and Sirius in 9 seconds. In 7 minutes, we will fly to Polaris Gou Chenyi.

In 10 minutes, you will fly to Betelgeuse in the constellation Orion.

This one takes about an hour, and I think it's really fast.

No. Because according to the current theory, the universe is finite and boundless in shape. This is the most likely possibility at the moment. It is not a definitive result.

Finite is the size of the universe that is limited. But there are no borders.

Here's an example. Earth, if you walk in any direction, you will eventually walk back to the same place. The earth is a world with limited space, but no borders. There is no place to call it a border. But the total size of the population is limited.

The universe is the general term for all the matter in space. Then there are two cases:

1.The existence of matter has no boundary, there will always be matter, and the universe has no end, so that no matter how fast your spaceship is, it will never reach the edge of the universe, because it has no edge;

2.Matter has a boundary, there is nothing outside the matter, everything does not exist, then the spaceship will stop flying to this edge, and it is impossible to continue flying, otherwise there will be matter (the spaceship itself) where it flies? In that case, there will still be no end to the universe, and the ship will never reach the edge, and it is the mysterious forces of nature that stop the spaceship, but it is not a myth.

Theoretically speaking, existence cannot exist in non-existence, otherwise non-existence becomes existence? Even if the spacecraft is able to fly to a place that does not exist, then there is no end to "non-existence", no matter how fast it is, it still cannot fly to the edge of the universe, because the universe has no edge.

The marginal questions of the universe can only be explored by science, but the final answer can never be found, and if the answer is found, the universe is not the universe。The problems of the universe can only be dealt with in philosophical language, and the ultimate principle belongs to philosophical questions. Don't think I'm playing with theory, because I can only rely on theory.

Summary: I don't think there is an edge in the universe, and no matter how fast a spacecraft is, it can't fly to the edge of the universe. Moreover, the 100 million light years that the subject is talking about is a concept of time, not a concept of speed.

The so-called propulsion of a spacecraft with light is, in fact, the first is to act the sun's light on a huge light sail, and use the light pressure generated by it to propel the spacecraft to gradually accelerate forward. The second is to arrange a huge, mirror-like sail in the solar system to focus the sunlight into a laser, accelerate the spacecraft leaving the solar system during the voyage, and push it behind. The first idea is to build a huge light sail in the solar system and use the light pressure to drive the spaceship forward, which is a solar sailboat.

But it has no practical significance, because it produces a chaotic speed pants, which cannot meet the requirements of astronautics, and the area of the light sail that needs to be manufactured is very huge, which is not proportional to the spacecraft, and the actual efficiency is limited. But there is another unexpected effect, which is the future sport of the solar system, the solar sailing race, just like the current sailing race at sea. The second scenario, which has a limited practical effect, is to push the spacecraft and accelerate it.

The efficiency generated is also not very high, and the force is not sustainable. It doesn't mean much to astronautics, and it won't be in the minds of scientists. In the future, it can be guaranteed that in the solar system, self-sensitizing jujube will be navigated, and the current theory is mature and the technology is reliable, which is jet-type space propulsion technology, and theoretically, the speed can reach up to about 30 percent of the speed of light.

Now the leading powers of the world are working on this technique.

Light can't propel a spaceship, light has energy and momentum, but it has no mass, and photons will be absorbed when they encounter a medium and disappear.

The light sail technique was proposed by Professor Huo Qiao Chun Jin in the breakthrough star shooting plan. At present, the solar sail technology is not feasible because the thrust that can be generated by the light is very small. And if the technology of laser sails is mastered, humans will be able to fly long distances.

The exact timing can only be determined by the experts concerned.

Nothing stands a chance!