Are there people on other stars in the universe?

Modern astronomy tells us that the solar system is not the only planetary system within the Milky Way. For example, in the vicinity of the Sun, in space with a radius of 17 light-years, there are a total of 60 stars, and among them, there are no fewer than 10 planetary systems with them.

Can any planetary system be human? No. The prerequisite is what kind of star the celestial body at the center of the planetary system is.

If the ** star is a variable star that is sometimes quiet and sometimes erupts, it will not be able to "lose its temper", not only the people on the planet can't stand it, but even the planet itself will not be burned. If the star is a variable star that expands and contracts periodically, it is not okay, and the "sun" that is hot and cold will be difficult for life on the planet to adapt. Even hot stars with a surface temperature of more than 10,000 are not good, because their ultraviolet radiation is too strong for all life to survive.

** If the celestial bodies are very close to each other, it is even worse, although there are two "suns" in the sky, although it is spectacular, if there is a planetary system, the orbit of the planet is not circular, but a very complex curve. The planets are sometimes close to two suns, and they are roasted until their surfaces melt; Sometimes it runs to the far edge of the sky, and it becomes a cold world. With such a wide range of temperature changes, how can you live in people?

It seems that only a star as "stable" as the Sun is blessed with the conditions to be welcomed by its planets. Astronomers call these stars sun-type stars.

Despite the harsh conditions and the strict restrictions, there may still be millions of sun-type stars in the Milky Way with planetary systems that meet the conditions for habitation, and some of them should exist in the civilized world, but this needs to be verified by human beings.

We see one galaxy after another, and each galaxy has hundreds of millions of planets in it, and each galaxy is a point in the universe.

In fact, these space pictures are still one point when narrowed down, and there are countless such points in infinite space, one is bigger than one and one is set in the other.

The more you go to the middle, the more dense the lack of heart becomes, and the thinner you go to the edges.

What is the outer side of the space that our planet is made of?

It is a space with few nebulae, and gradually there are no stars, and the last planet material cannot be found.

Without the planet, there would be no magnetic field, and of course, without the local electric field, without the light, it would be extremely dark.

However, (here it maintains a great electric field relationship with the center of the universe of all planets, with the center being positive and the edge being negative.) It is also constructed into a huge point, and there are countless such points in infinite space, endless. ）

Empty space, extremely cold, colder than anywhere else.

A universe that is completely stationary, without even matter.

The slightest pressure inside any substance will trigger a large ** of matter, but there is no matter here, a pure world.

What is "outside"? What's inside again? The universe has no borders, and what about the outside world? Far and farther away from the earth, there is darkness. "Darkness" does not mean that there is nothing in it, but that there is no light on earth.

For the time being, the dividing line between the inside and the outside has not been found, and there is no theory of the inside and outside, and now the conjecture that the universe has boundaries has no scientific basis.

Our universe is full of all kinds of stars, and they come in a variety of forms, some continue to shine, some are fleeting, and some are dragging long and beautiful tails, making up our entire spectacular universe. There are many people in life who have no concept of various stars in the universe, and it is easy to confuse various stars.

Comet comet is an easily observable low-mass celestial body in the universe, mainly composed of dust and ice and other materials in the universe, ranging in length from tens of kilometers to thousands of kilometers, when it passes near the star, due to the traction of the star, it will pull out a long tail composed of ice blocks, and reflect it under the light of the star, which looks very spectacular.

The main characteristic of planetary planets is that they cannot emit light on their own, and they orbit around the stars, which are mainly divided into two categories: one is a planet that does not heat up like the Earth, and the other is a planet like Jupiter that has a certain amount of heat in its core and surface, even if it does not accept the light radiation of the star, the surface can produce a certain high temperature.

A stellar star is a star that is constantly undergoing thermonuclear reactions like the sun, continuously emitting light and heat to the surroundings, and is often a high-quality combination of gases.

As the name suggests, a meteor is a kind of star that wanders aimlessly in space, it neither fixed to orbit any star, nor does it act as a satellite of a planet to hold a space, but just wanders around like a vagabond. When it crosses the night sky and flashes a dazzling light to form a real "meteor", it is the moment when it is captured by the planet's gravity and falls to the surface of the planet.

A satellite is a star that does not emit light and orbits a planet. Its mass is generally low, and its volume is much smaller than the planet around it, and the moon may be a star, a space rock captured by a planet, or an artificial satellite.

According to our human observations, due to gravity, a lot of dust will gather together to form larger dust, and then they will condense into pieces, and after some collisions and fusions, they will eventually form asteroids, and then these asteroids continue to absorb this substance, and finally the forest pants slowly become larger, due to the influence of hydrostatics, and finally merge into a planet. According to scientists, the Moon was formed by a collision between a planet the size of Mars and the Earth.