Gliese 58 1g What's so special about this planet, the only one that scientists have confirmed that there is life?

Editor/Science Department

Humans have probably discovered a "super earth" outside the solar system.

Why are scientists sure that there must be life on gliese's 58 1g planet?

You know, scientists often add the word "possible" in their previous evaluation of whether there is life on a planet.

What discovery made scientists so sure this time? What is so special about this planet?

In so many years of space exploration, there is a problem that has been lingering in people's minds.

In this vast universe, is there really no other alien life except human beings?

In fact, scientists have found the answer.

There is such a planet 20 light years away from the earth. Scientists who have always been conservative assert that there must be life on gliese 581g.

This is undoubtedly good news for the continuation of human existence.

Searching for extraterrestrial life has always been an important direction for scientists in astronomical research. Even though no extraterrestrial life was found in years of research, they still didn't give up looking for it.

The appearance of the planet gliese gave scientists a shot in the arm.

First of all, we should know that the basic requirements for meeting the existence of life are that the planet must have suitable temperature and fixed energy, as well as elements that can constitute the existence of life, and the most important thing is that there must be liquid water.

For example, in our solar system, there are eight planets.

Of these eight planets, only the earth gave birth to life.

Through data analysis, it is speculated that the overall diameter of gliese is 1.2 times or even 1.4 times that of the earth, and the planet density is basically the same as that of the earth.

That is to say, at the same density, the gravity on the planet gliese will be greater than that on the earth.

If there is life on gliese planet, they will have great jumping ability if they come to walk on the earth.

On the other hand, if humans land on the gliese, we will be unable to move because of unprecedented gravity.

This planet, like the Earth, is in a livable zone. Researchers have found that if there are greenhouse gases similar to those on the Earth in gliese, they will have a greenhouse effect after various reactions.

Then the atmosphere of gliese will be thicker than that of the earth.

It also reflects from the side that the planet gliese will be more suitable for human habitation.

He said bluntly that the probability of life on the planet gliese is 100% in terms of the resilience and living habits of all kinds of life.

The biggest difference between gliese and the earth is tidal locking.

When there is no big difference in physical properties and mass between two planets, each planet will have tidal locking with the other.

Just like the relationship between the moon and the earth, we can only see one side of the moon forever, but we can't see the back of the moon on the earth.

This is because of tidal locking with the earth.

If gliese encounters such a situation, the environment on the planet will be polarized.

Half of the earth is always hot and half is always cold.

There will be a junction between the two, and only this junction is the livable zone of life, that is, the residence of life on the planet gliese.

Humans may not be alone in the universe.

A physicist named Engrich Fermi once made a bold speculation about the universe.

He accurately calculated the probability of livable planets in the Milky Way and finally reached a conclusion.

If there are 1000 billion planets in this vast galaxy, there must be 1000 million terrestrial planets.

Why should humans be obsessed with finding earth-like planets? From the development of human society, from the appearance of human beings to the formation of human civilization today.

The most obvious point in society is the increasing demand for earth resources.

With the growth of population, the resources on the earth are gradually becoming insufficient.

At this time, people began to have a sense of crisis, so we will continue to explore the universe, hoping to find a planet similar to the earth, which can solve the problem of increasing population.

When all the resources of the earth itself can't support the development of human civilization, we have to explore whether other planets have available resources.

To sum up, the purpose of our search for terrestrial planets is to provide more possibilities for the continuation of human race and the subsequent development of human civilization.

In the process of this search, human beings have discovered many terrestrial planets.

They are more or less similar to the Earth, but gliese, which was discovered by scientists before, is the only Earth-like planet that has been confirmed to have life.

It means that through years of exploration, they have determined that there may be about four planets in the universe with roughly the same volume and mass as the earth.

And it is in a livable zone like the earth.

This means that there is liquid water on these planets, which may give birth to life.

They think that the earth is a unique planet.

The one-sided cognition that the sun revolves around the earth at sunrise and sunset every day was not broken until human beings walked out of the earth.

When people walk out of the earth, they have a deeper understanding of their own universe.

However, in so many years of space exploration, no life has been found in the universe except human beings.

In the whole solar system, mercury is the closest to the sun, and the fiery mercury of the sun itself is also the most affected planet.

So there is no liquid water on mercury.

Even before, it evaporated in long-term contact with the sun.

The planets discovered by scientists outside the solar system are strikingly similar to the earth.

What kind of planet is gliese 58 1g? Why do scientists think it has 100% life?

After eleven years' long search, human beings have found this planet quite similar to the earth outside the solar system.

Steven Walter, who was the first to suggest that there must be life in gliese, was actually not a biologist, but a physicist.

This is mainly because the conclusion that there is 100% life is so certain that many scientists want to find the flaw in this conclusion.

Later, through research, it was found that although gliese had the conditions for life, it was not suitable for human habitation.

Because of tidal locking, gliese is always hot and cold.

Even though the knots on the gliese are suitable for human habitation, there is no change in spring, summer, autumn and winter on this planet.

Day and night are also fixed, and the livable planet we are looking for must be at least 95% similar to the earth in order to be suitable for human habitation.

And even if humans do find a fully qualified planet, there are still many problems to be solved.

This bold conjecture about human migration to the planet once appeared in Liu's Three-body.

In one of the storylines, the universe had many life dimensions at first, but now it has formed a three-dimensional world.

In this state that we are used to the three-dimensional world, who can guarantee that the whole solar system will not instantly become a two-dimensional world because of some development?

This is like Van Gogh's starry sky, and no one is spared.

But these are just guesses.

So for this kind of gliese, which is considered by scientists to be 100% alive, is there any chance for human beings to visit it?

Actually, it's a pity to say it.

Because gliese is outside the solar system and at least 20 light years away from the Earth.

Although these twenty light years are a short distance in the universe.

But for human beings, this is a very far distance. At least we will fly at the speed of light for 20 years, not to mention that humans have not yet reached the speed of light.

Take Voyager 1 as an example. It has been flying in the universe for decades and has not yet flown out of the solar system.

So it is basically impossible for us to fly to this planet to detect the situation.

What do you think of this gliese 58 1g planet?