The Number Of Earth-Like Planets In The Universe Is Staggering - Here's The Math
[2023-04-15 12:24:58]
How do scientists know that the solar system like us is in the billions of universe? Originally at Quora: By acquiring knowledge and sharing, people can learn from others and understand the world better
What they know is that there are about 100 billion stars in the Milky Way and 10 trillion stars in the universe based on measurements of sky and extrapolation. This means up to 1,000,000,000,000,000,000,000,000,000,000 stars. Approximately 6% of these stars are G class stars (like our sun)
We have never been to those stars to see if they have a solar system like us. However, we used the Kegler telescope to examine a small part of the sky in the sky swan. Kepler does not allow us to visually see planets around distant stars, but it detects changes in the light generated by stars that pass by the stars in front of the stars It makes it possible. Based on this analysis it is currently estimated that almost all G class stars have at least one planet.
This means that there are up to 76,000,000,000,000,000,000,000,000 stars, just like our stars, almost all the stars have some form of planet. Kepler's observations suggest that at least a quarter of these stars have at least one planet of rocks of the same size as the Earth and the habitable area.
This means that there are up to 19,000,000,000,000,000,000,000,000 stars, Earth and at least one planet, similar to ours.
All of these are based on observing small samples and reasoning on a larger scale, but there are billions of other solar systems in the structure, until the data indicates that this extrapolation is unreasonable It can be said that there is sex. To the same extent as us
There is not enough data to deduce how much of these planet like the Earth actually developed their lives. So far, there are data points - the earth
This problem first appeared in Quora - a place to acquire and share knowledge, allowing people to learn from others and better understand the world. Follow Quora on Twitter, Facebook, Google +. Other questions
People believe that in observable universe, like our own sun, there are about 500, 500 billion stars a fifth, 500 billion stars. According to conservative estimates, the number of stars like these suns will be one hundredth of a billion different from the number of planets like the Earth. For a better understanding, Tim Urban wrote in his blog "Wait, but why." For every sand grain on the earth there is 100 planets like the earth. Scientists think that we can observe that if only 1% of these planets on Earth develop life, there may be 100 billion intellectual civilizations in the universe
Until very recently, people thought that our planet inhabited nearly 10 million species (107). Recent studies when considering microorganisms suggest that the Earth may be 1 trillion (1012) species of amazing species. This number exceeds the number of stars in the Milky Way (1000 - 400 billion)
Life can exist only on planets that draw energy from stars (Earth of the earth). The number of stars in our galaxy is about 100 billion, the coefficient of stars in the universe is about 100 billion. This means a total of 100 billion stars. Approximately 10% of the known stars are explained by astronomers to resemble the sun. If we confine ourselves to a planet like a star orbiting the sun, we may handle billions of dollars. Given these numbers, the likelihood of life on other planets is very high.
Given the age of the universe, our sun is very young. There are only 54 billion years history on Earth. Older planets that are billions of years ago before us like us like we may have more advanced civilization. If you imagine the progress we made in the past 2000, please imagine what is different in our civilization millions of years ago than us. Scientists break down the civilization into three types using the theory of the field of Dyson of Friedman Dyson. The first is a civilization that can utilize all the energy of the planet. Type II is one that ca