In some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the...

We just learned about plate tectonics, so let's see how that fits into a global-scale model for the formation and destruction of supercontinents called the Wilson Cycle. How do supercontinents like Pangea form and split up? It's an...

We've talked about free market economies and command economies, but the truth of the matter is that nearly every country on Earth utilizes a mixed economy, which blends aspects of each of the aforementioned economy types. Whether talking...