• last week
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.

And humans have now heard the terrifying sounds of the so-called Laschamp event for the first time.

Scientists used satellites to map the the rays smashing into our planet, capturing what sounded like wood breaking apart and rocks crumbling.
Transcript
00:00I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't
00:30know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this,
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01:07this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm
01:14doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know
01:19why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this, I don't
01:20know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing this,
01:21I don't know why I'm doing this, I don't know why I'm doing this, I don't know why I'm doing
01:22this, I don't know why I'm doing this, I don't know why I'm doing this, I don't know why

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