Do you believe that there are extraterrestrial creatures in this world?

Believe. Karl, a famous American science master. Sagan famously said:

The universe is bigger than anyone can imagine, and it would be a waste of space to be just us. "There are about 100 billion to 200 billion stars in the Milky Way galaxy alone, and there must be a large number of stars with planets nearby. And extragalactic galaxies, like the Milky Way, have been discovered by hundreds of billions so far.

From a probabilistic point of view, we shouldn't be alone. And I don't think aliens have to live according to our survival model. You don't necessarily need water, air, etc.

Maybe we think that a harsh environment is a paradise for them. But I in no way believe the current so-called UFO report. Because almost all UFO reports can be reasonably explained.

For example, military experiments, atmospheric phenomena, rocket wake, etc.

I believe, I think, that extraterrestrial life = number of planets * probability of life on planets.

Because there is life on the earth, the probability of life on the planet is not 0, and the number of planets can be considered infinite, and the probability of life on the planet is also fixed, so extraterrestrial life is also infinite, but the scope of our understanding is too small.

Believe, absolutely. If humans can survive on Earth, why can't other creatures live on other planets?

Anything is possible. But aliens don't necessarily bring good luck, so you have to be mentally prepared.

If you haven't met an alien yet, take care of real life.

I believe that there is nothing strange about the universe!

If not, that kind of thinking is very domineering, the vast universe, there are human beings, there are other species!

Personally, I look at the conclusion: there must be.

Is it okay?

I think it's quite likely.

There must be extraterrestrial creatures.

Although scientists believe that even if there are aliens, it is impossible to fly to Earth because of the huge distance between the planets, they do not deny the possibility of intelligent life in outer space.

Recently, two scientists discovered that there are two planets outside the solar system that may have the conditions for life, which has provoked a wave of "extraterrestrial civilization" fever. Some scientists believe that aliens definitely exist, but it is not easy to find a planet with life like Earth. If there are planets, there is not necessarily life; Life does not necessarily mean higher life, it requires that the planet must be positioned exactly right from its parent star.

Under such conditions, it would only be possible to have about 1 million planets in the Milky Way. And among these 1 million, there must also be a series of conditions for the formation of life, including water, oxygen and various chemical elements. And if the aliens of those planets have a highly developed civilization and have a history of sending radio signals to the sky much earlier than the Earth, 1 million years ago (our Earth is only 100 years old), then there are only 250 planets that can do it, and if they are evenly distributed in the Milky Way, the closest to us is 4,600 light years.

And in the universe, there are 1 billion extragalactic galaxies like the silver system.

Although 50 attempts to search for radio signals from outer space have been carried out so far in order to make contact with possible extraterrestrial creatures, the search for another way of extraterrestrial civilizations, that is, the use of artificial spacecraft to conduct direct exploration of outer space, is still ongoing.