Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a ...

(CNN) — If Earth’s astronomical observatories were to pick up a signal from outer space, it would require an all-hands-on-deck effort to untangle and decipher the extraterrestrial message. An art ...

Early cinema depicted aliens as human-like for familiarity and practical reasons, but modern science fiction explores ...

Erich von Däniken proposed that monumental structures such as the pyramids could have been built with help from aliens. Stefan Baumann Could ancient humans really have built the pyramids without ...