Can't contact aliens yet, why?

If the truth outside the universe exists in countless different life forms as many people still believe, why can't we contact them?

The question is whether our Earth is the only living planet in the galaxy that still hurts everyone, from mathematicians to conspiracy theorists.

However, if the truth outside the universe exists in countless different life forms as many people still believe, why can't we contact them?

No one has convincingly demonstrated that they had met a flesh-and-blood extraterrestrial outside the feature film or television.

Dr. Frank Drake, who is considered the father of the Seti organization looking for signs of extraterrestrial life, said: "Perhaps the most important question now is: Make people mean like How will our future be? Are there any creatures that resemble us? How have they evolved? What can evolution do and how can it be done? "

" It will all be clear when we find extraterrestrial beings and this will enrich our lives more than anything else ."

Where is everyone?

Back in 1961, Drake invented a formula to calculate the possibility that we are just a single planet in the galaxy, a formula that has so far been the basis for many research experts. this problem.

This formula is temporarily called the " Drake equation " that estimates the number of civilizations capable of communicating with the earth. And the number that Drake and his colleagues calculated in 1961 amounted to . 10,000.

There is a lot of controversy around the exact number, because this equation is also based on the unknown. However, if that number is close to reality, a more pressing question is why do we still have no solid evidence of their existence so far?

This is a question posed by physicist Enrice Fermi from the 1950s. He uttered to his colleagues at their lunch that " where is everyone? " This question became the basis of paradox. Fermi in which he highlighted the fact that estimates of extraterrestrial life were too high while the evidence for this was too lacking.

The " absolute silence " that we receive from extraterrestrial civilizations is indeed a concern of all human beings. It adds to the perception of our planet's loneliness in the universe and is a puzzle no one has found the right solution.

Astronomers have estimated that there are about 70 trillion trillions (number 7 with 22 zero behind) the star in the universe that we can see. And a recent survey of planets shows that an Earth-like planet may exist around 23% of the stars in the sky.

However, the mathematical numbers themselves are also a difficult issue when it comes to the scope, size and scale of this issue.

"We need to be prepared"

So says space science professor John Zarnecki from Open University. Stephen Hawking is almost certain that aliens exist and Seti Seth Shostak's senior astronomer has stated that the hunt for aliens needs to be equipped with an "alien detector " planet. They completely ignore the possibility that there may not be anything to look for!

However, many scientists argue that because people have used wave technology for more than a century, the age of the earth has now reached more than 4 billion years, so even if someone that exists out there, the chances of them using the same technology with us are very low.

Indeed, as we know, the radio waves that we use to communicate have been changing from analog waves to digital pulses - a much more subtle signal than its precursor. Similarly, the waveforms that scientists are looking for may not be the waveforms that aliens are using. No matter how big a wave we search, the likelihood of finding is still very small.

Human history

Another hypothesis is that intelligence will lead to destruction. The time period from when species can communicate until they self-destruct very briefly.

These hypotheses offer evidence such as the nuclear war or the emergence of artificial viruses that can only happen when we reach a high technical level.

And a lot of people think there's nothing worth looking for out there. In fact, the simplest answer to Fermi's problem is that there is no life outside of the earth so we cannot find anything.

Human existence is just a sudden light in the universe and we are very special and the conditions that create our evolution are unique.

Theories that support the thesis suggest that because our planet has extremely complex structure and design, the possibility of a certain coincidence of our time is almost impossible.

However, Dr. Drake has a simpler answer to the question of why we have not found life outside: " We have not tried enough," he said. "We have only focused on finding a few thousand stars, and only a few search channels that are capable of detecting the electromagnetic spectrum are still nothing ."

" If you are optimistic and trust the Drake equation, right now, it shows that there may be about 10,000 extraterrestrial civilizations that we can find in the galaxy ."

" That ratio is equivalent to 1 in 10 million stars. So before we are lucky to contact them, we still have a long way to go ."