Are there really aliens in the world? Why are there so many UFO cases in this area?

Let's take a step back and think about it, don't think about aliens first, think about the planet of origin of aliens first.

The Sun is only one of about 300 billion stars in the Milky Way. Astronomers believe that the Milky Way galaxy has about 93 stars with planetary systems, or 280 billion stars. Since life on planets depends on the light and heat of stars, the mass of stars is required to be no more than 1 4 times that of the Sun and not less than 1 3 of the Sun, and such solar-type stars account for about 1 4 of the total number, or 75 billion.

Considering that planets can neither be too close nor too far from the star to avoid overheating or cooling, there are about 2 3 stars of this type with a good ecological environment, or 52 billion of them. Since the origin of life must have elements such as carbon, hydrogen, oxygen, nitrogen, and sulfur, which generally only exist in new stars and planetary systems formed by the dust of old stars after the disintegration, it is necessary to look for in the planetary systems of the second generation of stars, which have about 1,100,000,000,000 stars, or 5.2 billion stars. It is estimated that only one of every two second-generation stars in the ecosystem has the required elemental conditions, and only half of the Earth-type planets with a mass of 40 or more than the Earth's mass are about 1.3 billion.

About 1 in 2 Earth-shaped planets can support life, so there are about 650 million planets that can reproduce life. Because nearly 8 planets are too young to give birth to life, the number of planets in the Milky Way needs to be reduced by another 500 million, so that the number of planets inhabited by life in the Milky Way is 600 million. If life on these planets evolves similarly to Earth, there are nearly 70 planets, or 41.6 billion, that are rich in colorful terrestrial life.

Some of these planetary life will also evolve into intelligent beings and form their own civilizations, and it is estimated that the proportion is about 1,400, or about 1 million. The Milky Way galaxy is only a medium-sized galaxy in the universe, and the Milky Way is not the largest, and today more than 1 billion celestial systems as large as the Milky Way have been discovered, called "extragalactic galaxies", not to mention that there are more distant extragalactic galaxies that have not been discovered!

Did the landlord see it, do you think it makes sense to say that aliens don't exist? Doesn't make sense! That's self-deception.

For UFO cases, I think some are true and some are false. But it's not something that civilians like us can know if it's true or not, only ** has the information.

Of course, antimatter provides energy, interstellar flight has sufficient flight power, but it takes more energy to create antimatter, this problem has not yet been solved by human beings, and about the inertia of high-speed flight, the technology required for near-light speed flight, human beings rely on their own ability, it is estimated that it will take hundreds of thousands of years to solve. Unless foreign technology helps.