When did plate tectonics on Earth begin? New research finds some of the earliest clues
Magnetic evidence from ancient Western Australian crust reveals plate tectonics began at least 3.48 billion years ago, half a billion years earlier than previously documented.
Listen to the sound of Earth's poles 'flipping' 780,000 years ago
Using paleomagnetic data from around the globe, researchers have constructed a model of the magnetic field before, during and after this historic reversal, also creating a musical piece.