The ocean covers more than 70 percent of Earth, yet most of it remains unexplored. Beneath the surface lie places of total ...

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping argues as much, and his “Eschatian Hypothesis” reimagines the way ...

Legendary sci-fi author Isaac Asimov helped create a TV detective series with a Star Trek writer, but it didn't end up ...

Nowhere on Earth is more guaranteed to put modern anxieties into perspective than Egypt. Visiting the pyramids of Giza ...