In 250 million years, Earth’s continents may merge into a supercontinent so extreme that most mammals would struggle to survive.

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, ...

Millions of children around the world have grown up memorizing basic facts about geography: there are seven continents and four oceans. Until now. National Geographic, one of the world’s pre-eminent ...

Remarkably, the shorelines of Africa and South America reflect each other almost perfectly, an extraordinary discovery that ...

Over those three years, I gradually specialized in seismic interpretation. Like a detective, I learned to read those striped black-and-white images and reconstruct a story—the story of plate tectonics ...

If you were to arrive in our solar system never having seen it before, you’d be impressed with variety. Giant gas planets with rings, moons spanning from minuscule to enormous, icy comets that hurtle ...