Life migrates from the earth

That is the view of Japanese scientists, in which our earth can provide life for other worlds.

>>>Take the submarine robot into the ocean of Jupiter

For years, scientists have hypothesized that bacteria might have been brought to earth on a comet or meteorite, seeding life today. But the panspermia theory poses the opposite problem, whether the earth can provide life to other worlds?

According to Tetsuya Hara of Kyoto Sangyo University (Japan) and colleagues, it is possible.'To date, the only planet we know of life is the earth. Therefore, the earth will be a source capable of sowing life seeds for other planets, ' scientists wrote on the scientific site arXiv.

According to the new hypothesis, millions of pieces of rock from the earth
may have reached Jupiter's moon Europa

Bacteria can escape from the atmosphere into space by high-speed ions after a solar storm. But because it is not protected, bacteria are often irradiated to death. A safer way to spread germs is the blocks of stone that travel to another world. Previous studies have shown that, in theory, a large meteorite impact could explode and splash tons of rocks throughout the solar system.

In the recent article, the Japanese team considered the Chicxulub asteroid collision as one of the "destructive pleasures" . The largest meteorite known in history to fall to Earth 65 million years ago is believed to be the cause of the extinction of the dinosaurs. This meteorite is 10km wide, weighing more than 1,000 billion tons, may have dug a big hole on the surface of the earth.

Mr. Hara and his colleagues tried to calculate how many pieces of rock came out of the 'landing' earth in places that are likely to support life such as Saturn's Enceladus moon and Jupiter's Europa. Both are believed to have underground oceans beneath the surface.

Picture simulating Chicxulub meteorite collision with the earth

According to the team, under certain conditions, up to 300 million pieces of stone may have reached Europa and 500 pieces settled on Enceladus. Even the larger number of stones may have reached the moon and Mars.'There is a high probability that microorganisms transferred from Earth will adapt and grow in Enceladus, Europa , ' Hara said.

Even a few rocks may have come to planets surrounding other stars. One of those planets might be Gliese 581, the red dwarf is 20 light-years away. Hara and her colleagues calculated about 1,000 pieces of stone from the Chicxulub collision that might have been there in about 1 million years, meaning the forms of life it took away had 64 million years to develop or die.

It is still not certain whether the bacteria will survive in that journey, although there are organisms that have demonstrated the ability to survive in the vacuum environment even for a short time such as lichen.