Summary:
- The article discusses the sound of Earth's magnetic field flipping, which is a rare and dramatic event that occurs every 200,000 to 300,000 years.
- Researchers have recorded the sound of the magnetic field reversing, which is described as a low-frequency hum that can be heard as the magnetic field weakens and then strengthens in the opposite direction.
- The magnetic field reversal is a natural process that has happened numerous times throughout Earth's history, and understanding it can provide insights into the planet's inner workings and the potential impacts on life.