Fermi’s paradox refers to the dichotomy between the likely existence of extraterrestrial intelligence and the fact that there is no evidence of such an alien.
This paradox was explained by the late British science fiction writer Sir Arthur C. Clark. He states:
Since then, many experts have been working on the same question.Why, considering the number of planets and stars Milky Way, Has anyone contacted you? This problem is called the Fermi paradox. There are many possible solutions. Some are more anxious than other problems …
What is Fermi paradox?
Fermi paradox is Where are all the aliens In space? If life is so rich, why didn’t we visit or hear from anyone else?
According to NASAOver the last 20 years, more than 4,000 planets have been found beyond our planet Solar systemIt is believed that there are trillions of stars in our galaxy, most of which host their own planets.
Given that life was born EarthDidn’t you expect it to start in at least one other place during the last 14 billion years of the universe?
Who came up with the Fermi paradox?
The Fermi paradox was invented by the Italian-American physicist Enrico Fermi. The Planetary Society.. He is said to have come up with this idea in a disposable remark about lunch with a colleague when he asked “Where are you all?” In 1950.
He thought he might have thought that someone had visited us, given that our planet is relatively young compared to space, but there was no evidence that it happened.
Fermi died four years later in 1954, so it didn’t take long to ponder the question. But his ideas have ignited all areas of science that want to solve problems, including the search for extraterrestrial intelligent life (SETI).
What is the solution to Fermi paradox?
There are many solutions to the Fermi paradox. Most likely, it doesn’t look hard enough for us to find other life, and interstellar movement between stars is difficult.
The first planets beyond our own solar system were discovered only in the 1990s. This means that we have barely begun to scratch the surface of studying other worlds.
For example, there are not many planets that look exactly like the Earth and orbit the stars like the Sun, but future telescopes are expected to be able to detect such things in the next 10 or 2 years.
Still, the distances between star systems are very large and it is difficult to move between them. For example, our closest star system, Alpha Centauri, is four light-years away. For comparison, the distance from Earth to Neptune is 0.0005 light-years. This is a journey that still takes decades with current technology.
Intelligent aliens may simply have decided not to visit us, or did so long ago without leaving any trace.
Alternatively, because life is so rare, it may be very unlikely that two intelligent species will be placed relatively close together in the vast universe.
A more solemn suggestion is that we are alone in space. This happened only to us, as life as seen on Earth is very unlikely to occur.
Most scientists think this is unlikely. However, certain events known as the Great Filter can prevent civilizations like us from progressing enough to come into contact with other places.
What is a great filter?
The Great Filter is the idea that man-made or natural catastrophic events extinguish intellectual life in a habitable world before they have the opportunity to reach the universe.
These events can be one of many things. They may be powerful solar flares, Climate change, An asteroid collision, or perhaps something of the planet itself, such as a nuclear apocalypse.
If this idea is correct, it’s not clear if this filter has already passed or hasn’t been reached yet …
What is the Drake equation?
The Drake equation is an idea proposed by American astronomer Frank Drake in 1961, which allows us to calculate the number of potential civilizations in the universe if we know some important variables.
The formula for the Drake equation is:
N = R * x 𝑓 pxnex 𝑓 1x 𝑓 ix 𝑓 cxL
R * = Average rate of star formation in the Milky Way
𝑓 p = Percentage of stars that support the planet
ne = average number of planets that can potentially support the life of each planet that hosts the planet
𝑓 1 = Percentage of planets that could “support” life that actually develops life
𝑓 i = Percentage of planets that develop intelligent life and therefore intelligent civilization
𝑓 c = Part of a civilization that develops technology to convey their existence
L = The length of time these civilizations send their detectable signals into space
By including all these elements in the equation, it may be possible to calculate the number of other intelligent civilizations in the universe.
This “simple” formula, as Drake once said, is similar to estimating the number of college students by multiplying the number of new students enrolled each year by the average number of years a student spends in college. According to SETI..
But for now, some important variables in the equation remain unknown. That is, we have not yet come up with a possible number of other types of intellectual life.
Can you solve the Fermi paradox?
Many scientists want to be able to solve the Fermi paradox. Future telescopes like NASA James Webb Space Telescope Launched in December 2021, you will be able to study the atmosphere of extrasolar planets like never before, while the search for new planets continues unabated.
Scientists narrow down the possibilities of the other Earth-like worlds of the universe by finding more planets in the habitable zones around the stars, which are just the right temperature for liquid water to be present. can do. Then use an advanced telescope to study some of these Earths. -Like our galaxy orb.
Ultimately, scientists need more data to truly understand the Fermi paradox. But if it turns out that habitable planets are common and astronomers haven’t heard from anyone yet, it may suggest that intellectual life like on Earth is rare. not.
Are we alone in space?
I don’t know if we are alone in space, but scientists hope to answer this question in the coming years.
Ongoing missions like NASA Perseverance Rover Mars can give us important clues. Patience was returned to Earth in the 2030s, collecting samples that may contain signs of Mars’ past or present life.
As long as you can discover a simple life like the A Moon of Ice on Mars or elsewhere Jupiter Also Saturn like that Europa When Enceladus, It will be evidence that life was born in at least two places: the earth and other worlds.
In that case, it would suggest that life is not limited to our own planet. So it will raise the prospect that other intellectual life like us may exist in our galaxy and beyond.
What is Fermi paradox?
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