So far, people on other planets have not discovered the existence of life through actual detection. But people have never stopped thinking that there is an environment suitable for the formation of life matter in the vast universe, and life already exists in this environment. So, how likely is this kind of idea?
Astronomers calculate that there are about 1 trillion stars in the galaxy where our earth is located. Assuming that 1% of stars are orbited by planets like the solar system, then there are 10 billion stars with their galaxies.
Assuming that one tenth of these 10 billion stars is considered to have a mass similar to the Earth, then the numbers we can retain are also amazing. If only one tenth of these 1 billion planets have temperatures similar to the Earth and other conditions for life to form and reproduce, then we have obtained 100 million astronomical numbers that are still very large. If a planet that may be surrounded by rare gases are screened in a tenth proportion, then there will be still 10 million planets that may appear in the end.
