Earth's Magnetism

Earth's magnetism is generated by movements of molten iron within its outer core. This creates a magnetic field that extends into space and surrounds our planet. In geodesy, which is the study of Earth's shape and gravitational field, this magnetic field influences navigation systems and satellite measurements. Understanding Earth’s magnetism helps in accurate mapping and global positioning. It also plays a vital role in protecting the planet from solar radiation. Overall, Earth’s magnetic field is crucial for both our navigation technologies and the natural environment.