Tag: magnetic field

Deep below Earth’s surface, at a staggering depth of over 5,100 km, lies the inner core a solid ball of iron and nickel. Despite its size and influence, this mysterious part of Earth still puzzles scientists. While we know it plays a crucial role in shaping the conditions necessary for life on Earth, how and when the inner core formed remains a topic of ongoing debate. The Earth’s inner core is responsible for generating the planet’s magnetic field, which shields us from harmful solar radiation. This magnetic field is likely key to creating the conditions that allowed life to flourish billions of years ago. Without it, our planet may not have been able to sustain life. Interestingly, the inner core wasn’t always solid. As Earth has cooled over time, the once-liquid core has been grad...