Footprints found in New Mexico were dated to roughly 23,000 years old - about 10,000 years before humans were thought to be ...

You had to hold your breath and dive a little to get through.” These were the words of Russian speleologist Katiya Pavlova, describing the instant she and guide Adrián Beltrán Dimas pushed through a ...

It appears that the lithosphere, which is the rocks on the outside of the world, has a pretty significant role to play in why the tectonic plates are moving the way they are.” This is the insight from ...

Scientists have identified a new pod of ancient hunter-gatherers who lived near the land bridge between North America and ...