Consider the vast technological advancements and societal changes that would accompany becoming a Type II civilization.

As scientists discover the most promising evidence of life on a distant planet, experts reveal what that alien life might ...

Hough worked at the Smithsonian National Museum of Natural History (the repository of this artifact) from 1886 to 1935. A kindly man with a static-cling memory who hunted arrowheads as a boy in ...

Every year on April 18, countries around the globe observe World Heritage Day—formally known as the International Day for ...