Is there no life on other planets? 80 points 20

Friend, I'm going to explain to you, I hope you will give me a reward, there are planets, there are aliens, and planets must have the same conditions as the earth, for example, light, the sun is a star, right, if the planet is not illuminated by luminous objects, it is impossible to survive without luminous objects, if the star is too big, the life will be short, too small, but it is difficult to provide heat to other planets, and it is difficult to form an ecosphere on its planet, and only when the mass is at the mass of the sun, that is, the sun-type star system, it is possible to give birth to life, which is only a quarter of our galaxy Second, if the star is really sun-type, other conditions must be met: First, in the Milky Way, about 60 percent of the sun-type stars appear in pairs with other stars, and only when the sun-type star is in phase with a small star or another sun-type star, it is possible to have an ecosphere, but only two-thirds of our Milky Way has this condition, and secondly, one of the prerequisites for giving birth to life must contain carbon, oxygen, nitrogen, sulfur, these "life elements", and such abundance can only be found in the outer periphery of the Milky Way And after countless supernova explosions, Su Wei's second-generation star family i stars are rarely qualified to do so, accounting for only one-tenth of one-quarter If all of the above requirements are met, there is only a one-third chance of snuggling up to this planet Fourth, the planet must be massive enough to stabilize an atmosphere, the eccentricity of the planet's orbit is guaranteed to be able to withstand life on the planet on a small scale, there can be no land on the planet, and there can be too little land for life to have a place for life to evolve, and the age of the planet must also be there Four or five billion years of lifespan to have time for life to evolve -- and if you set that it's less than one percent of all stars, then in the Milky Way, there are 100 million to 1 billion planets with life. But for this kind of estimation, scientists ask a fatal question: Do the conditions of human life have to be all in the form I said? For example, if you don't have oxygen, you don't have stars on a planet, and life on it can't live. Further research is to be carried out.

I'm tired of it, give me some rewards.

There should be, right? I believe that man is a higher animal, as the saying goes: there are people outside of man, and there is heaven outside of heaven. There must be creatures that are more powerful than humans.

In the vast universe, there must be extraterrestrial life, it's just a matter of time before we find them!

The universe is so big, there will always be.

Mars is said to have unidentified creatures.

But scientists have reservations.

Actually, scientists are also asking this question, and I'm here to mix it up.

This kind of planet should exist, because the universe is very large, there are all kinds of planets, although we have not found it, but there will definitely be life on a certain planet.

This kind of planet really exists, the universe is very large, since it can exist on the earth, such a planet where life can exist, I believe that there are life forms in the universe.

Such a planet may exist, but because of the limited technology of scientific development, such a planet has not yet been discovered.

There is life on other planets, but it has not yet been discovered by us humans.

In the vast universe, there are countless stars, and there may be planets around them. Now, astronomers have discovered thousands of such planets. Just like the sun, some stars even have as many as eight planets.

Therefore, there may be stars in the universe that have more planets than the sun.

In the observable universe, there are at least hundreds of billions of stars, and the number of planets is likely to be even higher. There are always planets that look like Earth. They operate in habitable areas of star systems and have liquid water on their surfaces, which makes it possible to give birth to life.

Even on certain planets with completely different environments from Earth, completely different life forms can be born. Astronomers speculate that the Titans may have life in the solar system, and that they may not use water as the basis for life, but instead liquid methane.

Also, life on Earth is based on carbon, while extraterrestrial life can use other elements as the basis for organic matter, such as silicon and germanium, which are the same as carbon. It should be emphasized that life born on different planets may have very different forms, and they may not be human.

Life exists on other planets, but it hasn't been discovered by us humans.

The formation of life on the planet requires a certain material basis, that is, organic matter composed of chemical elements, and only planets rich in elements can have the qualitative conditions for the birth of life.

In addition, there are various planetary environmental factors, such as the light of the stars, air, gravity, and so on.

The universe is very large, there are still many areas that have not been explored by humans, there must be another planet, and the material composition and environmental factors all meet the conditions for the birth of life.

There is definitely life on other planets.

The main constituent substances of life are oxygen, nitrogen, hydrogen, and carbon, which constitute organic matter, and then constitute life.

There is a legend of the composition of the bridge clearing machine:

In addition, there are environmental factors, that is, the environmental conditions on which organisms live, such as light, gravity, etc.

Light conditions mainly refer to the distance of the orangutan from the star, too far will cause the planet to be warmer, too close will cause the temperature to be high. Gravity conditions affect the atmosphere and crust, and low gravity makes it difficult to retain oxygen and land. Whether the environment is good or not directly affects the survival of life and is a very important factor.