Earth
Earth is a differentiated, geologically active planet with liquid water, an atmosphere and a biosphere.
Internal structureCore, mantle and crust formed through differentiation and long-term thermal evolution.
Surface systemsAtmosphere, oceans, ice, rocks and living organisms exchange matter and energy.
Magnetic fieldThe dynamo in Earth’s conducting interior generates a large-scale magnetic field.
Geological timePlate tectonics and erosion continually reshape the surface over long periods.