Why does life appear on Earth instead of Venus?

Canadian scientists found a cause coming from outer space to help life grow and maintain on Earth, instead of the nearest planets, Venus.

The cause of life appears on Earth instead of Venus

According to Science Daily, scientists at the University of British Columbia (UBC) published a new study in the July 21 issue of Nature Geoscience about the cause of life on Earth.

Surface of Earth and Venus.(Photo: NASA)

Research shows that the Earth's surface is covered by radioactive elements and produces large amounts of heat such as uranium and potassium during the newly formed period. However, a turning point occurred that caused a huge amount of these elements to disappear from the surface of the Earth.

This turning point is that meteorite bombs continuously bombard the uranium and potassium from the planet's surface and into space. This makes the Earth's surface more stable.

"This event has contributed to shaping and creating Earth's geology, climate and magnetic fields as we live today," said Mark Jellinek, professor of Earth, Ocean and Atmospheric Science Division. UBC said.

The tectonic plates become cooler and more stable. This helps the Earth maintain a strong magnetic field and trigger volcanic eruptions. Volcanic eruption releases greenhouse gases from deep in the earth to create a warm climate and appropriate air conditioning for life to emerge and develop. This is the biggest difference between Earth and other rocky planets .

Venus is the most Earth-like planet in terms of composition, size, mass and gravity. However, everything on this planet is not the same as our planet. When the Earth was stable and lived, the Venus atmosphere was only CO2 with a surface temperature of 470 degrees Celsius.

"The Earth should have the same outcome as Venus," Jellinek said, explaining why the two planets have evolved differently, "the key to the problem is the degree of erosion on the surface. face."

Without being bombarded like Earth, Venus's surface cools very slowly over time. Volcanoes fluctuate complicated, constantly reversing climate for billions of years, making life without opportunity to appear.

" From the effects of surface erosion, we realize that adjustments in the composition of the planet in early times will have profound consequences for its evolution. Special circumstances in the early days created the Earth today, " concluded Jellinek.