Learn how we know the Earth is round, and the science behind the shape of our gravitational field.

Earth's mysterious core is yet again generating headlines as scientists learn more about what lies way beneath our feet. Located 3,000 miles below the Earth’s surface, the inner core is anchored by ...

Few topics have been as contentious among both scientists and laypeople as the age of the Earth. Many scientists are people of faith, but from the moment the ancients found seashell fossils high in ...