Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

One thousand six hundred years ago, in a city named after the famous emperor Hadrian, bored Roman soldiers spent their free ...

Steep Tariffs on Mexico, Canada and China Will Take Effect Saturday Goods exported to the U.S. from Mexico and Canada will be subject to 25 percent tariffs, and those from China will be hit by a ...

More than three million years after her death, the early human ancestor known as Lucy is still divulging her secrets. In 2016, an autopsy indicated that the female Australopithecus afarensis, whose ...