Why is the existence of exoplanets could be a bad sign for humanity?

Date:

2020-07-03 00:20:12

Views:

5967

Rating:

1Like 0Dislike

Share:

Why is the existence of exoplanets could be a bad sign for humanity? Source:

Some of the newly discovered potentially habitable exoplanets

Despite the fact that scientists still have not found evidence of the existence of extraterrestrial civilizations, we can't accept the fact that there is, in the vast endless space of the ocean, no one else. One of the most important discoveries of recent decades was the discovery of exoplanets, which orbit around their stars in the habitable Zone (zone Goldilocks) – a region in space, determined on the basis of the calculation that all surface conditions located in it planets similar to the conditions on the Ground. The most promising in this respect are the planet on which surface water exists in the liquid phase. However, not all scientists share the delight of discovery «next» samplemodel exoplanets. But why?

the search for extraterrestrial life

The First earth-like exoplanet Kepler-186f was discovered in 2014, it is located at 492 light years from Earth in the constellation Cygnus. Kepler-186f is special exoplanet. The fact that its size is almost the same as our planet, and it orbits in the habitable Zone. According to the calculations of researchers from NASA, the illumination on the surface of the planet reaches 32% of the earth. If the planet has a dense atmosphere, in theory, on its surface, water can exist in liquid form, so – in theory, of course – and intelligent life. However, before we attempt to imagine the look the inhabitants of Kepler-186f, let's take a look at is not very pleasant for us as a species concept, known as the Great filter.

Great filter is one of the famous attempts to resolve the Fermi paradox – the absence of visible traces of alien civilizations, which would spread throughout the Universe over billions of years of its development. After all, we still have not found aliens, despite the existence of hundreds of billions of stellar systems in nearby galaxies, which could develop life. And, frankly, it's just very strange.

Kepler-186f — the first planet almost the same size as the Earth which orbit in the habitable Zone.

The Apparent absence of thriving extraterrestrial civilizations suggests that at least one of the steps on the way to becoming an interstellar civilization is extremely unlikely. So we remain alone because either intelligent life is extremely rare in the Universe, or tends to disappear. The time for the appearance of an alien civilization called the Great filter.

are We alone?

Scientists are trying to determine the exact time of the onset of the Great filter for more than 50 years. Explanations may include lack of earth-like planets or self-replicating molecules. In General, the question of the origin and even the very definition of life remains controversial. Read more about why read .

Proponents of the hypothesis about the lack of earth-like planets in the Universe argue that the evolution of complex life requires a huge amount of ideal conditions, or let's face it, coincidences. In addition to the fact that the Earth is in the habitable Zone, the Sun should be far enough away from the galactic centre to avoid destructive radiation, supermassive black holes, gas giants of our solar system must sweep away the asteroids trajectory of the Earth. These are just a few prerequisites for the necessary conditions for the emergence of complex life. The emergence of symbolic language, tools and intelligence could require other such «ideal conditions».

the Great filter is ahead?

While the appearance of intelligent life may be rare, the silence could also be the result of intelligent life in the Universe does not appear so often, and can exist very long. Can every sufficiently advanced civilization stumble across a suicidal technology or unsustainable trajectory of civilization? We know that a Great filter prevents the emergence of prosperous interstellar civilizations, but we don't know, was it mankind or is it awaiting us in the future.

For 200,000 years humanity has survived volcanic eruptions, asteroid impacts and natural pandemics. But our track record of survival is limited to only a few decades since the invention of nuclear weapons. Technology, pomschyu which we will be able to go to interstellar travel and survive on other planets we have.

In the case of Kepler-186f, we still have many reasons to believe that intelligent life on this exoplanet may never appear. Its atmosphere may be too thin to prevent freezing or there may be other, favorable conditions for life.

As writes the edition , some respected scientists such as the astronomer Royal Martin Rees of Cambridge centre for the study of existential risk point to advances in biotechnology as potentially catastrophic. Others, such as Stephen Hawking, Max Tegmark and Stuart Russell, also expressed serious concern about the exotic but understudied possibilities of artificial intelligence.

Do Not forget about climate change: recall that inlast year 11 thousand scientists from around the world warned world leaders about that But does it mean that you better hope that Kepler-186f is barren? Response

Recommended

An air leak site has been found on the ISS. What's next?

An air leak site has been found on the ISS. What's next?

Air leak occurs in Russian station module Inside the International Space Station live astronauts from different countries and all of them need oxygen. The air needed for the life of the crew is produced by special equipment, but the tightness of the ...

Why can thinking about death make life happier?

Why can thinking about death make life happier?

Awareness of one's own mortality can be a liberating and awakening experience How do you feel about the idea of death? How often do you think about it and what emotions do you feel? Many of us have been pondering these questions lately. The pandemic ...

A new photo of Jupiter has found a new spot. What's it?

A new photo of Jupiter has found a new spot. What's it?

New photo of Jupiter taken by the Hubble Telescope Jupiter is considered the largest planet in the solar system. It mainly consists of a huge amount of hydrogen and helium, so it has a much lower density than many other planets. Most of all, Jupiter ...

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Mystery of the Sargasso sea, and why there were dead ships

Mystery of the Sargasso sea, and why there were dead ships

At the time, in the Sargasso sea lost a lot of ships. Almost all mystical place, about which people say, giving them a mysterious halo, are on the water. When ”ends”, the disappearances do seem very strange and inexplicable. One o...

The Internet once again started talking about the Loch Ness monster

The Internet once again started talking about the Loch Ness monster

something like this would look like the Loch Ness monster. If there were. the deepest lake of Scotland is the Loch ness, the depth of which is about 230 meters. Thousands of years ago Roman soldiers invaded Scottish lands and foun...

What animals are afraid of a shark?

What animals are afraid of a shark?

Shark can seem the most terrifying aquatic predators, but they are actually very careful and vulnerable. At the moment scientists know of the existence of the 526 species of sharks, most of them ruthless killers. Reports of shark ...

The first card of the observable Universe in x-rays

The first card of the observable Universe in x-rays

Before you routine the Universe: acceleration and disintegration of matter is heated to extremely high temperatures, burning gas, black holes and the explosions of stars. the Nature of the mysterious dark energy responsible for th...

The biggest spider in the world weighs like a dog before he even interesting?

The biggest spider in the world weighs like a dog before he even interesting?

tarantulas themselves are divided into several varieties, but in General similar to each other To date, scientists know of about 42 thousand species of spiders. Many of them are very small and do not represent for people particula...

How does the biggest jellyfish and how it is dangerous?

How does the biggest jellyfish and how it is dangerous?

jellyfish Nomura and man If you wear a diving suit and descend into the waters of the Yellow sea, you likely will find a huge jellyfish Nomura (Nemopilema nomurai). The diameter of the body of these creatures is about two meters a...

Most scary fish on our planet

Most scary fish on our planet

photo — monkfish (Caulophryne polynema) Fish are the most numerous group of vertebrates. The exact number of species is very difficult to quantify, but the average on our planet there are about 34 thousand species. Most of them lo...

Lived in Australia mysterious dinosaurs, who would tear people to pieces

Lived in Australia mysterious dinosaurs, who would tear people to pieces

Tyrannosaurs — some of the most recognizable ancient creatures. When it comes to dinosaurs, most people immediately recalls the two-legged dinosaurs that millions of years ago were considered the most dangerous and bloodthirsty pr...

The most bizarre methods of treatment of diseases of ancient times

The most bizarre methods of treatment of diseases of ancient times

a scene from the Comedy series "the Clinic" Today, the most common human diseases are well studied and there are effective medications. Doctors and many of us know exactly how it medicines are and what they may have side effects. ...

What a person may bleed from the eyes?

What a person may bleed from the eyes?

In history there are many cases where people have been bleeding from the eye the Human body is a complex system, which presents unexpected and sometimes very frightening surprises. Recently ophthalmologist from the Indian city of ...

Scientific explanation: how sadness leads to dementia?

Scientific explanation: how sadness leads to dementia?

Sadness, anxiety, sorrow and other negative emotions reflect badly on the brain the Sadness and longing at times, overcome every person and that is perfectly fine. But if a person is always in the negative thoughts and worries in ...

In the sky the Australian flying ball of fire. What was it?

In the sky the Australian flying ball of fire. What was it?

the Green ball in the sky over Australia Imagine that you are walking in the night street and see how flying across the sky a huge green balloon — what will you do? Most likely, you immediately pick up the phone and starts recordi...

As unusual goat milk can help in cancer treatment?

As unusual goat milk can help in cancer treatment?

the value of goat's milk even more Cancer is considered one of the main causes of death in the world, but scientists are now able to treat some of their varieties. If you believe the statistics, Paris Healthcare, thanks to methods...

Can the universe consciously to imitate their own existence?

Can the universe consciously to imitate their own existence?

predstavljaju quasicrystalline Tetrahedral spin network (QSN) is a fundamental substructure of space-time According to the new hypothesis, the universe simulates their own existence in «strange loop». In an article publi...

The 5 most dangerous bacteria

The 5 most dangerous bacteria

Some of these bacteria can live in your house We are surrounded by bacteria. Among them are the ones that help us to live (e.g., digest food), but also those that can erase part of the population from the face of the Earth. Althou...

In Russia may increase the number of mosquitoes. What is the reason?

In Russia may increase the number of mosquitoes. What is the reason?

mosquitoes are everywhere, except Antarctica. Malaria is a dangerous infectious disease that is transmitted to humans through the bites of mosquitoes of the genus Anopheles . This disease is accompanied by high fever, enlargement ...

When people began to hunt with bow and arrow?

When people began to hunt with bow and arrow?

Bow and arrow were invented by people thousands of years ago. Thousands of years ago our ancestors used to kill small animals with his bare hands, and large hammered stones. Over time, they began to invent more sophisticated tools...

Underwater Italian city may be on the surface in a year

Underwater Italian city may be on the surface in a year

it looked like the village-the Ghost of Fabbriche di Carreggine in 1994 the Italian village of the 12th century Factory di Careggine, submerged under water for more than 26 years, soon will be able to see sunlight. Located in Tusc...

In our galaxy there may exist more than 30 intelligent civilizations

In our galaxy there may exist more than 30 intelligent civilizations

British astrophysicists have calculated that in our galaxy at least 30 intelligent civilizations When almost 500 years ago, Nicolaus Copernicus, and after Giordano Bruno was subjected to judgment about our place in the Universe is...

What is the difference between bacteria, germs and viruses?

What is the difference between bacteria, germs and viruses?

Microbes are the masters of this planet Bacteria, viruses, and various parasites troubled mankind throughout its history. The examples are not far to seek, outbreak of coronavirus in 2020 — a clear confirmation. But the microorgan...