How did man discover the earth? How man came to Earth

There was a man who was sailing, and a man on a boat noticed that the mast of the ship coming from the other side was getting higher and higher, so it was logical to think of the earth as round. Later, people explored it and found out. In fact, when astronauts go to space, they can see that the Earth seems to be round.

Remember.

Man lives on earth and has been there since we were conscious.

There were no humans on Earth, so how did the first man come about? Here's what scientists say.

It is a fact that human beings live on Earth. It's like a mountain with some animals living on it. As for how it came about, there are generally two possibilities: one is that it comes from outside the earth, that is, from cosmic space. The second is the source of the earth, which comes from the earth itself, that is, the earth is self-generated.

Extraterrestrial theory: Because of the similarity of animals on the earth, such as the similarity in the structure and function of some organs between humans and other mammals and different animals, it cannot be explained by the view that people came to the earth by spaceship, so the greatest possibility is that some or a relatively primitive creature came to the earth to reproduce and evolve, and gradually developed until the current human beings were formed.

The theory of the origin of the earth: very early, life was born on the earth, and the gradual evolution of primitive life on the earth led to the formation of human beings in the process of development and elimination.

The above is the relationship between humans and the planet. As for how a person came to earth, it is generally formed by a fertilized egg developing in the womb of the mother. It can also develop from a human cell into a human body. Maybe there will be another way for people to come to Earth in the future.

There is no doubt that human beings originated from the earth and slowly evolved from apes, but the origin of life is now disputed.

The theory of chemical origin (the small molecules in the primordial atmosphere slowly coalesced into the molecules of life at the edge, and then the primordial life was born as heavy rain fell into the ocean); The theory of the origin of the universe (the meteorite that fell to the earth brought to the earth living matter such as amino acids) and so on.

1. It is formed by the earth's own matter combined into the most primitive life under various complex conditions, and evolved over a long period of time.

2. It was formed by the alien material that fell on the earth and combined into the most primitive life, which evolved over a long period of time.

The difference is that the amino acids are terrestrial or extraterrestrial.

Of course, there is also the theory that God (Nuwa) created man, but it is just psychological comfort.

Evolved over a long period of time from the simplest cells in the earth's stones, water, air, and sunlight are all auxiliaries.

There were no humans on Earth, so how did the first man come about? Here's what scientists say.

The conditions are met! Naturally, it came....

Human beings, as living beings on Earth, appeared on Earth by evolving by other species.

According to archaeological research, the "Lucy" girl from Ethiopia, Africa, and the Australopithecus australopithecus were about 3 million years ago, and both are believed to be the first ancestors of humans.

Due to the age of Australopithecus, there is not even a complete fossil remaining, and there are only a few remaining tooth fossils).

Our ancestors first appeared in Africa, then migrated to other continents and evolved again. At present, the world's three major human races (black, white, and yellow) all evolved from African australopithecus.