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

A captivating new video shows how went haywire and almost completely disappeared during our planet's most recent "polar reversal event," around 41,000 years ago. A haunting soundscape of "alien-like" creaking sounds emphasizes the strain put on our planet's invisible protective shield. Earth's magnetic field, or magnetosphere, first formed up to 3.7 billion years ago and is generated by the swirling metallic ocean . The bubble of shields life on Earth from solar radiation and high-energy cosmic rays. However, every so often, Earth's inner dynamo weakens, enabling the planet's to swap....