are we alone in the universe? It is a question that man has tried to answer throughout history. In addition, the various powers of the world also have dedicated special institutions that are responsible for solving this great mystery. If we think about it, we could come to the conclusion that it is very difficult that there is only life on Earth in this great universe.

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Minute bacteria in meteorites

- It is known that thousands of meteorites have fallen on our planet. However, what many do not know is that they have found signs of possible extraterrestrial life,We have several examples to represent this statement. In 1911, in Egypt, the Nakhla meteorite fell. For different situations, they just studied it in 1999. Within this meteorite filamentous structures were found that leave bacteria behind. What does this have to do? For it is impossible for any terrestrial organism to enter the center of a millennial rock, so it is assumed that the bacteria that left those traces were not from Earth. https://omicrono.elespanol.com/wp-content/uploads/2016/09/meteorito_gancedo.jpg [Soucer](https://omicrono.elespanol.com/2016/09/meteoritos-mas-grandes-tierra/) -

The signal "WoW!"

- Researchers at Ohio State University had been doing hard research with the "Big Ear" radio telescope, when they suddenly caught a strong and strange signal whose source was located outside the solar system. For the operator, Dr. Jerry Ayman, the sound was so unexpected that he highlighted the group of symbols that corresponded on the paper and wrote "Wow!" There are many theories and supposed meanings of those sounds, however, none of them has been recognized as true. Later, scientists tried to capture a similar radio signal, but no matter how much they listened to outer space, they failed to do so. -

Evidence in history

There are many tests that would affirm that extraterrestrials do exist. In the temple of Seti I in Abydos hieroglyphics with strange forms were found: something similar to a helicopter, a digirible and a submarine. This suggested that it was a UFO. https://www.ecestaticos.com/imagestatic/clipping/0cd/ab2/0cdab251af50d3a059e02b04ff9a2af2/el-video-del-ovni-que-cruzo-la-costa-oeste-desclasificado-por-el-pentagono.jpg?mtime=1521050025 [Soucer](https://www.elconfidencial.com/tags/otros/ovni-6992/) -

There are thousands of planets similar to Earth

- Is Namekusein? No. A group of scientists from the University of Berkeley published the results of their research, in which they analyzed 42,000 planetary systems located outside our galaxy and visible from the Earth with the naked eye. They discovered that about 22% of the planets can be adapted for life. That is, every fifth star similar to the Sun has a planet similar to Earth. -

Water does not only exist on Earth

- Water is one of the most important elements for life is water, and water does not exist only on Earth. For example, in Europe's Jupiter satellite it was discovered that it is covered by large oceans, whose water in its entirety is more than what we have on Earth. The surface is frozen, but under the force of gravity of a giant like Jupiter, the water under the ice can remain in its liquid state and contain life. https://img.panamericana.pe/noticia/640-1373118341753.jpg [Soucer](https://panamericana.pe/tecnologia/131221-descubren-nuevo-metodo-buscar-agua-planetas/multimedia/1)

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