Researchers have examined tiny time capsules found in the oldest-known crystals in an attempt to settle a question that divides scientists: when did Earth’s tectonic plates begin to move? Plate ...

Remember back in fourth grade when your mind was blown that the continents and oceans are all actually moving, very slowly, and that they used to be in different forms? The theory of plate tectonics ...

This video excerpt from NOVA: "Deadliest Earthquakes" shows how Earth’s crust is made up of rocky slabs, called plates, and how those plates are constantly moving. As molten rock rises from Earth's ...