Listen to haunting sounds of Earth's magnetic field flipping 41,000 years ago in eerie new animation 

 A new video shows how Earth's magnetic field weakened and warped before temporarily flipping during a recent "polar reversal event." 

https://cdn.mos.cms.futurecdn.net/6Y34rG95TbqqobZ45Cphmh.gif

https://www.space.com/earth-magnetic-field-flipping-haunting-sounds