Plate tectonics is a scientific theory describing the large-scale motion of seven or eight large plates (depending on how they are defined) and the movements of a larger number of smaller plates of ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. A new study, using a combination of old models, new geophysical ...

Ancient plate tectonics in the Archean period differs from modern plate tectonics in the Phanerozoic period because of the higher mantle temperatures inside the early Earth, the thicker basaltic crust ...

Modern life can feel dizzying, like everything is motion and change. But there are some constants we set our lives against: the relative position of the stars wheeling above, the mountaintops below, ...

Earth's fractured outer shell is in perpetual motion. While usually imperceptible to us surface dwellers, these pieces of a rocky jigsaw puzzle are constantly crashing together, diving beneath one ...

Scientists examining rocks older than 3 billion years discovered that the Earth's tectonic plates move around today much as they did between 2 and 4 billion years ago. The findings suggest that the ...