Earth's ellipsoid

Earth's ellipsoid is a mathematical shape that approximates our planet's perfectly irregular surface. Unlike a sphere, an ellipsoid is slightly flattened at the poles and bulges at the equator due to Earth's rotation. This shape helps cartographers and scientists accurately measure locations, distances, and landforms. Think of it as an elongated sphere, similar to a slightly squashed football, which provides a more precise model of Earth's shape for mapping and navigation purposes.