Star Trek is packed with all sorts of alien, both on the Enterprise and throughout the final frontier, and these are the ...

A mysterious visitor from another star system is carrying secrets billions of years old. Its composition could reveal how ...

Explore how cutting edge telescopes, AI, and new detection methods are transforming the extraterrestrial life search and ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

The ExoLife Finder (ELF) looks like no telescope ever built. A spectacular crown of 15 five-meter mirrors perches atop a ...

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

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

Alan Tudyk's 4-part sci-fi saga is making a comeback with a new project, giving fans some closure after last year's sudden ...

Ridley Scott's Alien is widely considered the ultimate sci-fi horror movie, but a few genre films, like The Fly and The Thing, are even better.