Have aliens ever arrived on Earth? What new discoveries have scientists made?

Every time a UFO appears in the sky, many people speculate, especially many alien enthusiasts think that it is an alien spaceship. However, no one has seen it with their own eyes, and these can only be guesses. In the past, due to the limited level of science and technology, human beings could not go to outer space to have a look.

Since the level of science and technology has been comprehensively improved, human beings have found out how vast the universe is, and the earth is a very small planet, human beings are as insignificant as ants, and many bizarre phenomena are often found in real life, which have been bothering scientists and are difficult to explain with science. More than 200 years ago, a very strange thing happened in a small village in Sweden, so what is it? Have aliens ever arrived on Earth?

This case 200 years ago is also elusive to scientists!

In 1808, a villager witnessed a UFO, it suddenly appeared on a hot afternoon, after the UFO appeared, the whole village became extremely dark, surprisingly, there were many spherical objects in the sky, although this unidentified object seems to be small, but the power should not be underestimated, they are dark brown. For unknown reasons, they changed direction and moved towards the village for winter.

It was thought that it would find a destination and stop, but this action did not stop, and for a long time, countless orbs appeared from the west side of the village and disappeared from the east side of the village, and scientists could not estimate how many orbs there were. It seemed very strange in the eyes of the villagers at the time, and the phenomenon lasted for more than two hours before it completely ended.

At that time, many people witnessed this phenomenon, and some people witnessed a sphere falling to the ground, and after looking at it, they found that the sphere was like a bubble, and they were all **What is this bubble? Why are there so many flying objects? Even experts are puzzled that this phenomenon simply cannot be explained.

Not only this mysterious event, but also unidentified objects have appeared in various places in history, and no one can give a definite answer to these unknown objects. More than 200 years have passed, and scientists still have no answer, whether aliens exist or not, this is a mystery, it is a very magical creature.

Although no one has witnessed their true face, it still can't stop scientists from exploring it, maybe one day when they find aliens, these mysterious and strange phenomena can be revealed one by one, but the universe is vast, and the possibility of human beings really finding aliens is very small, unless science and technology develop to the peak stage, all this will also fall into place. There are too many unsolved mysteries in history, which requires everyone to explore and excavate in a new way.

In a sense, aliens must have arrived on Earth, and some scientists suspect that the pyramids were built with the help of aliens, and that such a project could not be completed with the level of technology at that time.

In the process of studying prehistoric civilizations, scientists have found that many buildings depict patterns similar to extraterrestrial civilizations, which are very advanced, so they have attracted great attention, believing that this is evidence left by aliens who once visited the earth.

Aliens have never arrived on Earth, and scientists have not found anything. Because to this day, scientists have not found any information about extraterrestrials.

Scientists have been looking for signs of extraterrestrial life and extraterrestrial civilizations, in order to better search for extraterrestrial lifeMany probes have been sent to search for alien planets, and the farther quadcopters have already entered interstellar space, and the distance between them and the Earth is more than 22.5 billion kilometers. Although the quadcopter Voyager 1 probe, which is far away from the earth, has been sailing fast in the deep sky for more than 40 years, and has not yet seen the edge of the planets in the solar system, according to the analysis of some scientists, the Voyager 1 probe will sail again at today's flight speed and azimuth for tens of thousands of years before leaving the planets of the solar system and arriving in other star systems.

Suppose there are more advanced extraterrestrial civilizations in the range of about 100 light-years from EarthIt is very likely that they have received this kind of wireless communication data signal sent by everyone, and based on this wireless communication data signal, they can infer that there is also intelligent civilization on the earth. Therefore, scientists think that it is very likely that everyone has already been exposed, and it is very likely that life on Earth has been observed by alien planets for many years. If the earth is indeed discovered, are people already at risk?

While we have already searched for these potential extraterrestrial civilizations, it is very likely that they are also looking for you, and it is very likely that they have already discovered you. Scientists have discovered 1,715 planetary systems around the planets in our solar system, and if this planetary system software has the same intelligence as the people of our family, then they can also carefully observe the transit phenomenon left on the surface of the sun on the earth to find the earth, and scientists usually find exoplanets according to that method.

In the whole process of wireless communication data signal transmission, its compressive strength is not maintained and will not changeThe compressive strength will decrease with the increase of transmission distance, and the wireless communication data signal sent by people is very weak, and it is very likely that it is too weak to be accepted when it is transmitted 1 light year away, let alone receive this very weak data signal at a distance of tens of billions of light years on the earth. Therefore, the probability of being discovered by people on the earth due to the use of wireless communication data signals is relatively small, and naturally there are some very advanced extraterrestrial civilizations that can be seen immediately, just like everyone goes to the zoo to observe the animals.

No, yes, it's all strong words.

This is because we still have a lot of unexplained situations from beginning to end, and it is also speculated through some signals from outer space that it is very likely to be observed by extragalaxies for many years.

The main reason is that the current scientific and technological development of the earth is still lagging behind the extraterrestrial civilization, so many scientists speculate that they have already been monitored by the other party.

Because we may not be the only intelligent beings that exist, there may be things in other societies that we don't know very well.