In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

In the sci-fi book and now movie Project Hail Mary, astronaut Ryland Grace, played by Ryan Gosling, encounters three ...

According to Metropolitan Hilarion, aliens live in different realms and occasionally appear to humans as angels ...

Could the strange light fluctuations of Tabby's Star be evidence of a Type II civilization building a Dyson Sphere?

Stretching across the sun-baked plains of southern Peru, the Nazca Lines have inspired awe, obsession, and wild speculation ...