Whether there are other civilizations in the vast universe? Although technology is developing rapidly today, this doubt has never been reduced. Or which higher civilization has discovered us, but the gap between the two sides is large, so there is no communication?

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Throughout history, people have had a great doubt about the sky. Whether there are other civilizations in the vast universe? Although technology is developing rapidly today, this doubt has never been reduced.

Are there really other civilizations in the universe? Is it just that they have not been discovered by us? Or which higher civilization has discovered us, but there is a big gap between the two sides, so there is no communication?

Alien civilization

Do you know? Humans have found traces of similar civilizations on the surface of many alien planets such as Venus and Mars.

Some scientists even boldly calculated that the reason why there is life on Earth is actually some substance dropped by other planets after collisions. This energy flows to the Earth, so the Earth civilization was produced.

Of course, all this is just a guess. If we want to know the accurate answer, we definitely need to further develop scientifically.

Before, many people said that they had met aliens. There are also many items that do not match historical processes around the earth, so many scientists speculate that some strange objects may be formed after interference from alien civilizations.

But none of this can directly prove the existence of aliens, because we have no direct evidence to prove that these things are related to aliens.

But in 2022, Zhang Tongjie, chief scientist of China's extraterrestrial civilization search at a press conference in the media that he had used China's sky eye fast to capture some special electromagnetic wave signals.

Professor Zhang clearly stated that these signals are very different from those captured by people before, and the latter is more like signals that only other civilizations can send.

Although his speech did not bluntly say that there were aliens, it still caused great fluctuations at the time.

After all, the authoritative trust of China's Sky Eye is still quite high, and the capabilities of fast are unquestionable. Its reflective surface is like a radio telescope the size of 30 football fields, and its fast sensitivity ranks first in the world.

So people believe in the sky eye very much, and it is understandable. Secondly, the achievements made by Tianyan before are also very impressive. It has captured the largest fast radio burst sample at present, and even discovered more than 600 pulsar bodies that humans did not know about before.

Professor Zhang claimed through China's Sky Eye Fast that he discovered electromagnetic signals suspected to be emitted by alien civilizations. Is this a big step away from determining whether there are aliens? The reason for the

incident is that since Fast was first used, he has been searching for other civilizations in the universe.

In 2020, when scientists sorted out the data observed in 2019, Zhang Tongjie's scientific research team found two sets of them in these files, which are likely from electromagnetic signals sent by other civilizations.

, but they did not announce it at that time. Until 2022, the team still used fast to observe a very special set of electromagnetic signals from an unknown planet outside the solar system.

However, after Professor Zhang's team carefully studied these special electromagnetic wave signals using fast, they found that these special signals do not come from alien planets, but have a high probability of coming from our earth itself. It turns out that

was finally discovered that this incident was a mistake from beginning to end.

However, this misunderstanding is very similar to the concept proposed by another scientist. In 1979, Werheimer, a scientist who began to search for alien civilizations in the universe, once publicly stated that all the signals that humans have explored so far are actually sent by our own earth.

He even explained: Why do humans regard themselves as signals sent by other civilizations?

Wilheimer said that these electromagnetic wave signals are likely to come from our mobile phones, TVs, planes and even satellites.

and various electronic devices and computers near our observatory, the band they generate may be received by our various exploration instruments.

So from this perspective, it is normal for the Chinese Sky Eye to distinguish the errors generated by various signals. Although fast is excellent, it has accumulated very little experience.

Speaking of this, Wilheimer compared his story and said: I have more than 20 years of experience. In the past, humans have also received many special signals when exploring whether there are other civilizations in the universe, but these signals were eventually proved that they are just electromagnetic signals sent by humans.

capture signal

When we know that there are still problems in ourselves, we can always find a solution in time. For example, if our search base moves from the earth to the back of the moon, then we will not be disturbed by the electromagnetic waves on the earth.

Of course, this method feels a bit unreliable when you hear it.

After all, humans have not yet developed the ability to establish observation base stations on the moon. So some scientists have suggested that we can actually use two or more large telescopes to explore from different regions on the earth.

For example, one is in China and the other is in the United States. In this way, scientists can make more comprehensive judgments based on the different locations of the telescope.

If the signal sent by the earth cannot interfere with multiple telescopes at the same time, the results of the instrument search can be more accurate. Furthermore, two telescopes observe a signal source at the same time, and according to the law of triangle, we can also infer how far the signal source is from the earth.

Now, humans mainly use two methods to search for alien civilization. The first type of

is to cast a wide net, which means that different countries or regions are using telescopes to conduct large-scale observations in the universe as much as possible, but the information cannot be fully shared, resulting in the missed and ignored electromagnetic signals that cannot be studied in depth.

The second method is regional exploration, that is, people aim the telescope at certain star fields where life may appear, and then observe for a long time, so that those very weak but also captured signals can be registered as much as possible.

Professor Zhang also mentioned in his paper that Fast's next work task is to cast a wide net for one to two years to discover those star fields where life may exist, and then continue to make more careful observations on these star fields where life may exist.

Foreign scientists also believe that fast has outstanding capabilities and is more qualified to explore the depths of the universe than other telescopes.

So in the next ten years, China will have a more unique advantage than other countries in exploring in the universe, and perhaps we can find more surprises.