Tag Archives: Planets surface

Breaking new ground – the rise of plate tectonics

Exactly 100 years ago, German geophysicist Alfred Wegener presented his theory of continental drift – the idea that the continents of Earth are gradually drifting apart. And now we have some compelling new information. Wegener’s theory was party based on the observation that the large landmasses of Earth fit nicely together like a puzzle but […] … learn more→