Aliens

A professor of engineering breaks down what the 'Oumuamua projectile could possibly be and the secrets it could hold–but we still have no definite answers.

Humans have altered the Earth so much over the last generation that scientists expect geologists of the future to be able find our signature.

The real legacy of the War of the Worlds is how we think about mass media.

Despite our reputation as a science-minded superpower, America has always had a predilection for the unseen.

Unless, you know, you've actually been abducted.

Who are the true believers in crop circles? And might they be on to something?