Earth's core

Earth's core is the innermost layer of our planet, located about 2,900 kilometers (1,800 miles) below the surface. It consists primarily of iron and nickel and is divided into two parts: the outer core, which is molten and generates Earth's magnetic field through its movement, and the solid inner core, which is incredibly hot—reaching temperatures as high as 5,700°C (10,300°F). The core plays a crucial role in geology, influencing tectonic activity and the planet's magnetic properties, which protect us from solar radiation. Understanding the core helps scientists gain insight into Earth's formation and behavior.