Spherical Earth Model

The Spherical Earth Model describes Earth as an approximately spherical shape, like an elongated sphere called an oblate spheroid—slightly flattened at the poles and bulging at the equator. This model is supported by extensive scientific evidence, including satellite images, observations of ships disappearing hull-first over the horizon, and the way gravity works uniformly across a globe. Understanding Earth as a sphere helps us explain phenomena like time zones, the circular shape of lunar and solar eclipses, and how navigation systems like GPS operate accurately around the world.