Since the Australian radio telescope has caused an erratic incident due to the "microwave oven", people have been more cautious when observing cosmic signals. Previously, China's Sky Eye discovered suspicious signals. Could it be another misunderstanding? The Sky Eye is a radio t

Since the Australian radio telescope made a mistake due to the "microwave oven", people have been more cautious when observing cosmic signals.

Previously, China Sky Eye discovered the suspicious signal . Could it be another misunderstanding?

Daily Eye is a radio telescope

American scientists say this signal may come from the earth.

Alien signal

In 2022, the Chinese Sky Eye routinely observed and studied the universe, but unexpectedly received a string of mysterious electromagnetic waves .

staff hurriedly collected it and notified my country's astronomical experts to conduct research. Although

did not decipher it, after repeated consideration, experts speculate that it is likely to be related to alien civilizations.

What makes people wonder is that in our lives and in space, natural or unnatural electromagnetic waves are emitted at every moment. How do astronomers determine whether these electromagnetic waves are electromagnetic waves of alien civilizations?

Daily eye receives electromagnetic waves

The reason is that astronomers can divide the source of electromagnetic waves according to the frequency and signal strength of the signal .

For example, the human space detector commonly used is narrow electromagnetic waves, which have strong artificial electromagnetic wave characteristics.

The electromagnetic waves naturally formed, such as those emitted by neutron star , are very high in frequency and are messy, just like "rough stones". If

is an alien civilization, they should also conform to the characteristics of natural artificial electromagnetic waves to a certain extent.

Of course, this is just a speculation about the possibility of . After all, no one has seen alien civilizations, and they don’t know what their electromagnetic wavelengths look like. After all, it is still a question whether they exist or not.

Alien image concept

With this inference, my country's Sky Eye optimizes the received terminal equipment in construction, which can more effectively analyze the electromagnetic waves that are transmitted all the time.

In fact, this is not the first time that China's Sky Eye has received a suspicious alien civilization signal. In 2020, it received a suspicious electromagnetic wave.

Alien electromagnetic wave mystery

Questions by American scientists

The famous American scientist Dan Weirhai defaults to the signal received by the Chinese Sky Eye, which is likely to be from the earth and cannot be a proof of the possible existence of alien civilizations.

Perhaps, Velheimer was a little scared by the astronomy misses in the last century.

At that time, an observation station located in Australia received similar electromagnetic waves, and people immediately took it seriously and conducted analysis and research on it.

After a period of time, everyone found that this electromagnetic wave would be captured by the observation station at a specific time point. Some astronomers excitedly said that this is the alien civilization saying hello to us!

Radio telescope receives electromagnetic waves

In this regard, many astronomers have written one paper after another with this topic.

Until 15 years later, a newcomer came to the observation station and discovered why the mysterious electromagnetic waves are very similar to those of microwave ovens.

So I checked all the microwave ovens in the site and found that the mysterious electromagnetic wave that people had studied for 15 years was emitted by an old microwave oven in . Once the incident of

was reported, the astronomers who wrote papers wanted to find a crack in the ground to get into it.

After this incident, there seems to be an unwritten rule in the astronomy community, that is, signals similar to microwave oven radiation are all considered to be from the earth.

microwave oven radiation

In addition, Velheimer also proposed other inferences, he believed that the possibility of the so-called alien civilization exists is very low, at least not in places where humans can observe it.

Because so far, planet observed by humans does not have oxygen .

And oxygen and water are necessary conditions for living organisms to survive. If there are really alien civilizations, does it mean that they don’t have oxygen?

This is obviously beyond human cognition, and Werheimer chose to take it conservatively.

Oxygen and Biology

Before this, we have to ask a question, is oxygen really necessary for biology?

In nature, there is an anaerobic organism . As the name suggests, it can survive without oxygen.

They can still decompose organic matter in an oxygen-free environment and provide energy to the body.

Due to the low conversion efficiency, the of anaerobic organisms are very small in size , such as Staphylococcus genus , Corynebacterium genus , etc.

Aerobic bacteria and anaerobic bacteria

There are many other anaerobic organisms similar to those of anaerobic bacteria

, and they are both the lowest form of life.

So, are there animals that can survive without oxygen?

has, one of which is a creature called " Water Bear ". Although

is called bear, it is very small, less than 1 mm, so that people mistakenly think it is microorganism .

In fact, it is a member of the animals and belongs to the temporal animal category.

In an oxygen-depressed environment, the water bear will enter the pseudo-death state of , so that its body does not need oxygen to perform metabolism .

Generally speaking, this state of water bears can last for 5 days, which means that they do not require oxygen for 5 for 4 days.

Water bear insect under the microscope

Water bear is not a creature that does not require oxygen in the complete sense. Are there other animals in the alien planets that use various special means to cut off their own demand for oxygen? The emergence of

water bear allows us to see this possibility.

Not only that, water bear has very strong temperature tolerance and can survive in an environment of minus 272 degrees Celsius. If it is an environment of minus 200 degrees Celsius, it can survive for more than 1 month.

They can survive even at high temperatures of 150 degrees Celsius.

They can also live in places with a water pressure of 6 times higher than Mariana Trench , even if faces nuclear radiation directly, it will not be affected.

Scientists introduced that the water bear can even survive in the extreme cosmic events of such as supernova explosion , gamma ray burst .

Supernova explosion forms crab nebula

However, in harsh environments, they are not active and difficult to be discovered.

I have to say that the water bear has given us hope for the existence of alien life. No matter how harsh the environment of extraterrestrial planets is, there may be life forms, but humans have not discovered it.

So, Werheimer's conservative view is not much reference.

Speaking of this, many friends may be curious whether alien life exists in the universe?

Alien life concept

Is there any alien life in the universe

If it is an alien life, the possibility of existence is still relatively high.

For example, our neighbor Mars, scientists found evidence that may exist on the surface of multiple living organisms.

For example, the ancient brine lake in Mars is an excellent place to nurture primitive life, microbial detection samples of Martian soil, etc. All kinds of evidence point to the existence of Martian life .

Brine Lake Formation Principle

And in the Milky Way, there are countless planets similar to Mars, and the possibility of life is even greater.

However, when it comes to the possibility of alien civilization, we have to pour a basin of cold water on everyone.

According to the view of Fermi Paradox , advanced intelligent creatures have the tendency of to expand outward, and they will intentionally or unintentionally emit electromagnetic waves outward during the process.

If there is really an alien civilization similar to human civilization or more advanced than human civilization in the universe, why has human beings not received any signal so far?

Introducing the mysterious universe to explore

The most important thing is that the harsh environment of other planets may have the conditions to nurture life, but there is no environment that nurtures advanced intelligent creatures.

And advanced intelligent creatures are a necessary condition for the birth of civilization. Perhaps in the vast universe, only human civilization is really the highest.

Fermi Paradox is not to cut off the idea of ​​humans looking for alien civilization , but to let those who overestimate the possible existence of alien civilizations maintain restraint and start the social development in front of them.

Scientist Fermi

versus this, Hawking believes that alien civilization must exist.

and repeatedly warned humans not to send signals to aliens too much, because alien civilizations are much more advanced than human civilizations, and the contact between the two may be a disaster for humans.