In the vast universe, is human beings the only beings? Why?

In the vast universe, human beings are not? The only existence. Probably in our unrecognized other planets have.

If there are human beings, then we must think that only human beings who are self-taught by us humans are the only ones. But the universe is big. There are many types of living things.

Research on other interests has been waiting to be developed. If you are sure of this. It may be that only the earth is the most suitable for people to make, so the current judgment is.

Humanity is the only one that exists, in the vast expanse of enthusiasm, because of the detection of other planets we would most like to go only to Mars or something, yet. Test out the existence of other humans. It depends on whether the development of the waiting buckle can be found?

If you still haven't found a straight line that reaches human cognition. Probably enough to say that.

Do you know about aliens? See how humanity treats invading aliens.

It is possible that life does not exist on other planets; It may be that the current level of human technology has not yet reached the stage of finding extraterrestrial life.

To this day, the Earth is the only known living celestial body in the universe. But no one is sure of the possibility of the existence of other life, and scientists believe that life may be universal in the universe aggregated. If we look at the birth and development model of life on Earth, we need liquid water, moderate temperature, sunlight, and an atmosphere for life to be born and reproduce.

In the universe, this condition may not only exist on Earth, but also on many rocky planets in the habitable zone. Kepler 452b and Gliese 581d and Proxima Centauri b and other planets may meet similar conditions as the Earth, there may be life, intelligent species, due to the distance, we cannot understand the situation of other star catalogs, so the existence of extraterrestrial life has not been found so far, probably because the observation technology has not yet reached the stage of finding extraterrestrial life. <>

In addition, in the universe, there are also interstellar organic molecules, and many rocky planets absorb interstellar organic molecules, so there is no shortage of nutrients for the formation of life. Some simple life forms are more tenacious, such as microorganisms that can cross interstellar space, like blown away dandelions, to live and reproduce on other planets, just like colonists. <>

The search for extraterrestrial life does not have to be confined to the outer solar system, there may be some unknown anaerobic microbes beneath the surface of Mars, in Europa.

Organisms similar to those found in the Earth's deep sea may exist in the deep sea below the surface layers of the second, fourth, and sixth levels. In the universe, life may be universal, but life species similar to humans are extremely rare, the evolution and development of life is a complex process, and it will go through many situations, and it is relatively rare for planets in the universe like the earth to provide a long time for development, and the earth species have experienced mass extinction events, and it is not easy for life to reach an advanced stage. <>

So, life may not exist on other planets, but it may exist.

Because of the limitations of the human living environment, human beings are currently unable to discover life in the universe and leave the solar system.

This is because human beings' understanding of the universe is still very limited, so no other life forms have been discovered so far.

Although the universe is vast, not all galaxies have objects suitable for the existence of the Earth, and what we humans know so far is that the Earth is the only object that has life, but it is very likely that there will be another Earth in other parts of the universe.