Memorizing seven continents feels settled, like learning the alphabet. A new study argues the ground rules are less tidy. The ...

Disregard what you learned in geography class—Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized the same lineup: Africa, ...

Ancient Australian rocks suggest Earth’s continents formed later than expected and share a common origin with the Moon.

Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests ...

A new study of the chemical components of rocks led by researchers at Penn State and Columbia University provides the clearest evidence yet for how Earth's continents became and remained so stable — ...