The curious minds at What If illustrate how Earth's entire evolutionary timeline could unfold in only 10 minutes.

The record sheds light on the climate early humans experienced when they were spreading out of Africa. A tree-ringed African ...

It isn’t easy to figure out how the Earth was built, because it happened 4½ billion years ago, and no one was there to watch. So scientists have had to look at what the Earth looks like now and at all ...