Pangea may have vanished 200 million years ago, but it left a trail of clues in rocks, fossils, and even magnetic fields that ...

Imagine Earth with an even 50/50 split between continents and oceans. Our planet covered half by land half by water. How ...

Seen from space, our planet has often been called a "blue marble." It's not, however, just the swirly white clouds that give Earth its marbled appearance. The continents: They are what complete the ...