Sound of Earth’s magneti

Sound of Earth’s magnetic
Sound of Earth’s magnetic flip 41 000 years ago

Video:
00:01:20
Approximately 41 000 years ago, Earth’s magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earth’s magnetic field weakened significantly—dropping to a minimum of 5% of its current strength—which allowed more cosmic rays to reach Eart…