Invincible is back with a bang, bringing new challenges and developments for Mark.

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

By snatching chloroplasts from algae, animals called sacoglossans produce their own energy through photosynthesis ...