Hear the eerie sounds of Earth's magnetic field flip 41,000 years ago

The Earth 's poles flipped 41,000 years ago in an unusual event saw the magnetic field weaken, allowing cosmic rays to batter the atmosphere.

Scientists used satellites to map the the rays smashing into our planet, capturing what sounded like wood breaking apart and rocks crumbling.

If the Laschamp event were to happen today , it could wreak havoc on the electric grid and leave life at the surface exposed to higher amounts of solar radiation.