It’s hard to imagine a time when Antarctica was a stone’s throw from the Australian Outback, or when Morocco was right across the street from New York. But that was the world 300 million years ago, ...

Pretty wild, right? It’s a map of Pangea — a supercontinent that formed roughly 300 million years ago — mapped with contemporary geopolitical borders. What you see here is an anachronistic mashup — a ...

During our month of “What Ifs,” we’ve gone from doubling Earth to halving the Sun to everyone trying to jump at the same time, and we’re wrapping things up back at ground level: What if the ...