Will humanity be able to build a spaceship to fly to other galaxies in a hundred years?

Some things are not achievable if you work hard enough and put in enough. For example, it is impossible to build a spaceship to fly a few light-years away in a hundred years.

If we want to build a spaceship to an alien galaxy, whether it can be technically realized is one thing, and the most important thing is that the limitations of scientific theories are the most deadly.

The closest star to us is Proxima Centauri, about light-years away, and Proxima Centauri is a triad star system. The nearest extragalactic galaxy to us is the satellite system of the Milky Way, which is the Great Small Small Galaxy, visible to the naked eye in the Southern Hemisphere, with two spot in size, and is about 170,000 light-years away.

Like Da Liu's sci-fi ** "The Wandering Earth", human beings want to escape the solar system with the earth and go to Proxima Centauri, the closest star to us. Voyager 1, which has been flying for 42 billion years now and is 22 billion kilometers away from us, will eventually fly by Proxima Centauri in its current direction. Voyager 1 travels at a speed of about 17 kilometers per second and takes about 74,470 years to reach Proxima Centauri.

Voyager 1 is only a small unmanned probe, carrying fuel that is almost exclusively used to support instrument work and orbit changes, and the main flight is still to rely on the gravitational slingshot to accelerate and then inertial motion.

Why is manned space exploration so difficult now? For example, manned landing on the moon and manned landing on Mars are mainly because manned vehicles need a life-sustaining system, carry more fuel, and do not have such a large thrust launch vehicle, which is also the reason for the failure of the former Soviet Union's manned landing on the moon in the last century.

I read an article before that said that the current way of energy utilization of human beings is "boiling hot water", and I personally agree with it very much. It is expected that the very developed way of energy utilization for human beings in the future is controlled nuclear fusion, which will greatly improve the efficiency of human energy utilization, and can support long-distance flight of spacecraft with very little fuel. But the speed of the spacecraft may not increase much, the limit of the speed of light is there, and the conventional use of energy is an unbridgeable chasm.

Even if you fly at the speed of light, it will take more than four years to fly to Proxima Centauri!

The science fiction that supports high-speed interstellar travel is curvature-driven, a way to get the best of both worlds, achieving faster than light without violating Einstein's theory of relativity. But at present, this method is very sci-fi, and there is only a theoretical possibility. The best way to travel interstellar should be the use of wormholes, which is simply understood to be taking shortcuts.

The use of energy, the development of new materials, and intelligent vitamin systems all need to be completed, and the mastery of controlled nuclear fusion may be completed within a hundred years. Every country has a soft spot for the moon because it has resources on the moon that the earth lacks, and the most important thing is the clean nuclear fuel helium-3.

The black hole of literature and science, the **** network invasion and deletion.

This is not possible because it is very difficult to do. After all, it's too far to get there, so you will run out of energy. So that the astronaut will die inside, and then no useful data will be obtained.

It's absolutely impossible, first of all, you can't do controlled nuclear fusion, you still build spaceships, and even if you can make breakthroughs in recent decades, it is impossible for you to build spaceships without research and experiments every three or four hundred years.

Anything is possible. If human beings want to build a spaceship to fly to other galaxies within a hundred years, they need "the right time, place and people", which is a huge challenge for all mankind.

A: The answer is yes. With the development of human science and technology, spaceships can be developed within a hundred years, and people can make spaceships to swim in the universe at that time.

It's hard, judging by human speed. There is a shortage of talent and the efficiency is worse than before. Then a small experiment will take decades, and this great achievement will not be possible in a hundred years.

I believe in the wisdom and intelligence of human beings, so after a hundred years of hard work, he will definitely build a spaceship, and then fly to any planet, and fly freely in the universe.

1. When launching. The thrust of the rocket gradually accelerates from a stationary state to the first cosmic velocity. After reaching the first cosmic velocity (kilometers per second), the spacecraft operates reliably by inertia.

At this point, the "centrifugal force" of its flight is in balance with the Earth's gravitational pull on it, and it flies in a pre-designed elliptical orbit.

2. When changing tracks. If the spacecraft needs to change orbit, it also needs thrust. There is no air in space, but the ship can be powered by the thrust of the Spitfire.

3. When decelerating. The spacecraft returns to the atmosphere until it lands, requiring a reverse drag force to reduce its speed. Part of this resistance is natural in the air, and the other part is artificial, such as using a parachute to slow down, but it can also be created by a reverse spitfire (mainly in the final stage).

The spacecraft has established a coordinate system before its flight, and it can only be positioned by coordinates outside the Earth. Current spacecraft are powered by rocket engines.

Spacecraft with a launch speed of the third cosmic velocity (kilometers per second) can fly out of the solar system.

At present, the farthest planet explored by human beings is the moon, and if we want to fly out of the solar system, our generation should not see much, and no one can say whether there will be a chance in the future.

All of humanity, at all costs, will it be possible to create a spaceship that will fly to the galaxy in a hundred years. Honestly, it's a tough question. However, to explain this problem from a certain perspective, whether or not to create a spaceship that can fly out of the galaxy does not depend on the time of a hundred years, nor does it depend on whether it costs all mankind.

If you want to create a spaceship that flies to the galaxy, you must meet the fourth cosmic velocity, that is, to get the speed that can fly out of the galaxy. The first cosmic velocity is to fly out of the earth, the second cosmic velocity is to run to the sun, the third cosmic velocity is to fly out of the solar system, and so on. Even if all mankind paid all the costs to create a spaceship with a fourth cosmic velocity, it is still unknown whether it will be realized.

If you want to realize a spacecraft to space, a hundred years is not a long time, but it is not a short time. In "The Three-Body Problem", in order to save itself, human beings on the earth have studied three survival directions, one of which is an introduction to the warp engine, that is, if human beings want to create a spaceship flying to the galaxy, they must make a warp engine, and the warp engine is the basic condition for the spacecraft to reach the speed of light.

At present, human beings do not have the existence of being able to exceed the speed of light, and the current technology does not have this level, although many people are studying how to exceed the speed of light, some people think that beyond the speed of light can achieve the future and the past, and some people think that beyond the speed of light is just the beginning of human beings traveling the universe. But don't be too pessimistic, as far as the current speed of human science and technology development is concerned, it is not impossible to achieve the goal of flying out of the galaxy within a hundred years, after all, the current level of scientific and technological development of mankind has actually only experienced less than 100 years, and what the next 100 years will develop into is still an unknown, no one is a prophet and cannot clearly say whether the future can be realized, but let us look forward to it together.

I don't think so, gravity, fuel, spaceship speed, spacecraft materials, etc. are all problems to consider, and they can't be solved in just a hundred years.

Of course, it is impossible to make it, because it requires very professional knowledge, as well as a lot of special conditions and special materials, and what can be made is genius, otherwise no matter how many people there are, it will be useless.

It should be possible, because the current scientific and technological development of various countries is very good, and it should be feasible if they are united.

No. Because the level of human science and technology has not yet developed to that stage.

Spacecraft into space is a scientific contribution of mankind. However, if human beings want to go out of the earth and move to live and live on alien planets, even if human science is developed now, I am afraid that it will be difficult to realize this wish in tens of thousands of years.

Human life is a living life form on the earth. The shape, size and weight of the human being, including all the energy needed for survival, are all borne and supplied by the earth's own resources, so it can be said that the human species is the needs of the earth.

I believe that if human beings want to break out of the earth and move to other planets to survive, it is not as simple as imagination. Nor are there signs of life on every planet. At least all the planets in the solar system except Earth are difficult to contain.

Even Venus and Mars are unattainable.

Great distances are a big obstacle, and how humans move through the vacuum is a problem. The load and gravitational force of the alien planet, including the load-bearing value, whether human beings have gained weight or are weightless, the storm on the alien, the difference between hydrogen and oxygen, and the temperature cannot be adapted to by human beings.

Now scientists are suspected of discovering multiple terrestrial planets in the universe outside the solar system, with water and atmosphere and oxygen, which may have signs of life, but its environment, temperature difference, and load-bearing state may not be suitable for the survival of human physique.

We humans have seventh-level intelligent lifeforms, but we are still in the first-level category, according to the life on earth, it may belong to the high-level intelligent beings, but according to the entire universe, it may still belong to the lowest-level creatures.

If human beings want to break out of the earth, there must be a great human transformation, that is, human beings need to evolve to a dualistic state, reach the second level of thinking wisdom, and diet, work and rest, time and speed will become tens of thousands of times faster than human beings.

However, the wish is beautiful, we need this spirit of daring to think and do, and with this spirit of daring to change the sun and the moon to a new day, we can find our own self in the future work and interstellar voyages, and not be frightened by the distant starry sky.

It's difficult, because there is no huge breakthrough in basic science now, and there is no theoretical support for the creation of such a spaceship.

People may, because that time is a long time ago, and a lot of things will happen, and people will go out to Earth.

No, because the current level of technology is not enough, even if human beings pay any price, they can't do it.

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!

Human beings can build large spaceships, but shipyards have not yet been built, because the spacecraft to Mars or other planets must be large spaceships, because the voyage time is very long, even if Mars is closest to the earth, it takes more than 50 small edges at a speed of 300km per hour.

A spacecraft (Spacecraft, Spaceship) is a spacecraft that transports astronauts, cargo to space, and safely returns to the base burn back. Spaceships can be divided into two types: one-time use and reusable.

Never, what spaceship? The spaceship that human beings know can only exist in a planetary world like the solar system, and the huge universe is not only a planetary world, but also a black hole that has been discovered, which spacecraft dares to explore? Black holes are much denser than planetary worlds, what's in the universe?

What kind of substances are they? How dangerous is it? Will there be [white holes] and [wormholes] that are more invisible than black holes, and they should not only be celestial objects that can be observed by the Milky Way and galaxy clusters?

I think that scientists say that human beings cannot fly in the solar system, there are 200 billion solar systems in the Milky Way, and it would be a miracle if the spacecraft could fly safely around the solar system, don't dream of space travel.

Universe. <>

Black holes, white holes, wormholes.

Solar system. <>

Terrible black holes.