The center of the Earth seems to cool faster than expected: how it would affect life on the planet
A study carried out by researchers at the University of Zurich (Switzerland) revealed that Earth’s core is cooling faster than previously projected Until now.
Experts explain that The core of our planet is composed of molten metals which are at a temperature close to that which exists on the surface of the Sun.. This dates back to the very creation of the planet, and over millions of years it has been undergoing a slow cooling process that in millions of years will conclude with its solidification once it cools completely.
This will be very bad news for the planet because It is thanks to its core that the Earth has its magnetic field, which is responsible for deflecting cosmic radiation. Without this kind of protective shield, life on our planet would be completely impossible, just as it happens on other planets in the solar system.
“Our results could give us a new perspective on the evolution of the Earth’s dynamics. They suggest that Earth, like the other rocky planets Mercury and Mars, is cooling and becoming inactive much faster than expected,” said Professor Motohiko Murakami, lead author of the study.
These conclusions were produced thanks to the study of bridgmanite, a mineral that can be found between the core and the mantle of the Earth. One of its qualities is that it serves as a perfect conductor of heat.
As part of an experiment, scientists experimented with a sample of bridgmanite and found that its thermal conductivity is about 1.5 times higher than expected. This means that bridgmanite helps heat from the core dissipate at a faster rate than experts previously projected.
Murakami maintains that it is still too early to make any kind of estimate about when the total cooling of the core could occur, and therefore of life on Earth.. However, this is not expected to present a problem for humanity for at least a few thousand or million years.
“We still don’t know enough about these kinds of events to pinpoint their timing,” Murakami said.
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