As we may know already, Earth’s magnetic field is essential for life on Earth to exist. However, how it forms is a little bit complex. It happens thanks to our planet’s liquid iron outer core that it rotates around the solid inner core.
The importance of Earth’s magnetic field is scientifically proven. It protects the planet and, subsequently, the life on Earth, from dangerous solar and cosmic radiations. Without it, our Sun would fry our planet.
According to a new study carried on by the University of Wisconsin-Madison’s scientists, the latest Earth’s magnetic field reversal took place about 800,000 years ago, and it lasted for approximately 22,000 years.
However, that result of the research amazed the researchers because, up till now, they thought that such a phenomenon could not take place for such a long period. Also, scientists believe that such an Earth’s magnetic field reversal would happen during our lifetime.
What Would An Earth’s Magnetic Field Reversal Mean?
“Reversals are generated in the deepest parts of the Earth’s interior, but the effects manifest themselves all the way through the Earth and especially at the Earth’s surface and in the atmosphere,” stated Dr. Brad Singer, the leading author of the recent study.
“Unless you have a complete, accurate and high-resolution record of what a field reversal really is like at the surface of the Earth, it’s difficult even to discuss what the mechanics of generating a reversal are,” the researcher added.
The new study revealed that the most recent Earth’s magnetic field reversal happened for about 4,000 years until its completion. However, there has been a period of instability that took place for 18,000 years. That’s a total of 22,000 years.
Also, according to new studies, the Earth’s magnetic field is decreasing by 5% every 100 years, meaning that, at the moment, we should prepare for an Earth’s magnetic field reversal during our lifetime. However, there’s no reason to panic, since such an event won’t bring the doomsday upon humanity.
Vadim is a passionate writer on various topics but especially on stuff related to health, technology, and science. Therefore, for Great Lakes Ledger, Vadim will cover health and Sci&Tech news.