Can science now go out of the solar system?

The Earth's solar system, located in the outermost part of the Milky Way, is about 20,000 light-years away from the edge. Even the vertical distance is a thousand light years. The extremely long distance of space travel away from the Milky Way can only be imagined in three ways:

The first way is to create a spacecraft that travels at close to the speed of light. At this high speed, the relativistic effect allows spacemen sitting on it to fly out of the galaxy with just decades of their youth.

The second method is to use the snail spaceship (about 1/1000th of the speed of light) that can be built with modern technology, plus cryonics, to slow down or even suspend the astronaut's metabolism until they reach their destination (this is how the astronauts in the movie "Alien" traveled to space).

The third method is also to use the snail spaceship, but to build a biosphere that is self-sufficient in air, water and nutrients, and the astronauts live and reproduce in it, using the relay method of "Yugong moving mountains" to complete the journey.

But either way, astronauts are also destined to say goodbye to their relatives and friends on Earth, so it is extremely inhumane, and the results of the detection will have to be very far in the future before they can reach the hands of geoscientists. Therefore, unless you actually find a shortcut in time and space and can use it, the possibility of such a trip is very slim.

Questioner: Lau Kai-yip [Assistant Captain of Hong Kong Space Boat]).

Do you mean a "person" going out? Or is it the "knowing" of people going out? It's not good for people to go out now, and it's early!

As for the knowledge going out, it has already gone out a long time ago. Now we know not only out of the solar system, but also out of the Milky Way. There is also some understanding of extragalactic galaxies.

It depends on what you mean by "walking".

Mankind's understanding of the universe has long since gone beyond the solar system.

But if humans want to survive outside the solar system or fly out of the solar system in a spaceship – not yet!

That's definitely not going to work, now it's impossible for people to go to Mars, and it's even more impossible to get out of the solar system!

Theoretically, it is possible, but time does not allow it, you can't bring things to eat and drink, and there is a space to bring for decades or even hundreds of years, who will do it, and there is no point in what to do!

If we want to fly out of the solar system, we have to build better aircraft. Our current technology is not yet able to support us flying out of the solar system. After all, our current plans to land on the moon or Mars with flying vehicles often fail, so flying out of the solar system is still very far away for us.

There are many, many beings in the universe like the solar system. Moreover, our current understanding and exploration of the solar system is still very shallow. If we want to fly out of the solar system, then we need to take our technology to the next level.

First of all, the issue of fuel is to have enough energy to support our exploration of the universe that can fly out of the solar system and return. The fuel on our current spacecraft is simply not enough to allow us to get out of the solar system. So we have to be able to come up with a new power fuel.

Some scientists believe that nuclear energy can be used. The power of nuclear energy is so great that if we can use it properly, it can allow us to fly out of the solar system. But we know that the explosion of nuclear energy is very terrifying, so how to make nuclear energy output and better storage is also a problem that we need to solve.

The materials of the aircraft need to be stronger and the various properties should be very good. There are many dangers in the universe, just like a planet that is floating everywhere can cause the destruction of a spaceship if it touches it, so the materials used to make the spaceship must be very good. It is clear that the current materials on our planet do not meet this condition.

Perhaps in the future, we will discover new substances or develop new synthetic substances that can meet these conditions. We can also look for this material from other stars.

It will be a long wait for humans to fly out of the solar system, but one day it will happen. The "Martian Boys" once said that the Egyptian Sphinx's ears contained the secrets of an alien spaceship, and that humans could one day open that mechanism to gain access to that technology. And all this still needs to be expected and waited.

Not yet!!

The maximum distance between the Earth and the Sun is kilometers, and the minimum distance is kilometers. The average distance is kilometers. The distance between the Earth and the Sun is taken as an astronomical unit and rounded up to 150 million kilometers.

This distance is equivalent to 11,700 times the diameter of the Earth, it takes 17 years to reach the Sun by an airplane traveling at 1,000 kilometers per hour, and it takes more than 150 days to launch a spacecraft with kilometers per second, and it takes more than 8 minutes for the sun's rays to reach the Earth.

So, the Earth is too far from the Sun! In addition, most of the planets and galaxies in space are counted in light years! So at the moment humans can't fly out of the solar system!

The solar system is 2 light-years in diameter, and it takes at least 1 light-year to fly out of the solar system, which is about 9.46 trillion kilometers. The fastest probe at 30 kilometers per second and takes more than 10,000 years to fly out of the solar system, and it is obviously far from flying out at present.

Of course, some people measure the boundaries of the solar system by the distance of Neptune in the eight major galaxies, which is very close, and it has indeed flown out now. But the farthest object that the solar system's gravitational pull can control is the Oort cloud, an outer layer made up of trillions of ice debris and gaseous material. 1 light-year away from the Sun.

I think this should be counted as the true boundary of the solar system, and if we count it by the Oort cloud, we can't fly out of the solar system at the moment.

Eh....Humans can't fly out of the solar system. It is closed. It's a gravitational anti-magnetic field, and if you can't fly out, you'll be slowed down and pulled back to destroy.

Outside the solar system is still dark as before, and the so-called extragalactic galaxies are all lies to appease the populace. Because no star can illuminate the entire universe.

Depending on what kind of planet you are talking about, the spaceship can be driven outside the eight planets a long time ago, but the time is long and the fuel is not enough to return, so no one has gone yet, but if it is really outside the solar system, that is, the Oort cloud, it is really too far.

Unmanned spacecraft have already flown out of the solar system.

It is believed that in the near future, human beings will be able to fly manned spacecraft out of the solar system and even find aliens.

Yes, in dreams.

In reality, it is impossible.