Earth Magnetic Field

The Earth's magnetic field is generated by moving liquid iron in its outer core, creating a giant magnetic shield around the planet. This magnetic field extends from Earth's interior into space, forming the magnetosphere, which protects us from harmful solar radiation and charged particles. It also causes compass needles to point north, guiding navigation. The magnetic field's poles are not fixed and can shift over time. It plays a crucial role in maintaining conditions suitable for life by shielding the atmosphere and surface from solar and cosmic radiation.