资讯

The sun’s magnetic poles flip every 11 years, and scientists predict it will happen again in 2024. This could cause intense solar storms, disrupted satellite communication and more intense auroras.
The Earth's magnetic poles are showing signs of shifting, a natural process that occurs over thousands of years. While not an immediate concern, a potential pole reversal could impact technology ...
The new dates help lay out an interesting timeline. Although individual records in some places have seemed to record an incredibly rapid reversal of the poles, these lavas show a complex process ...
But you may be surprised to know that the North and South Pole are both gradually moving – and they have actually switched places over the years too, due to changes in magnetic fields (though ...
North Pole and South Pole during and between reversal. (NASA) - Paleomagnetic studies indicate that Earth's magnetic field is as strong as it has been in the past 100,000 years and is twice as ...
By combining all the data, the team estimates the pole reversal happened over 4,000 years, but with the preceding 18,000 years marked by dramatic magnetic field instability, including two excursions.
Nearly 780,000 years have rolled off since the Brunhes-Matuyama reversal. The Laschamp event has been a temporary reversal and took place 41,000 years ago.