Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...
The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...
There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...
In this four-part series, explore the seedbed civilizations of Mesoamerica, the Middle East and the Indus Valley to learn how and why early humans, who had been mobile foragers, created villages, ...