The CIA has been accused of secretly searching through DNA databases to find people who may have alien ancestry.

The gas giant Beta Pictoris b, about 63 light-years away, has the mass of 10 Jupiters and a magnetic field thousands of times as strong as Earth’s.

Plenty of sci-fi movies feature aliens and monsters wreaking havoc on humanity, but in these fantastic sci-fi movies, humans ...

Using the same planet-hunting techniques as Earth astronomers, would inhabitants of a planet hundreds of light-years away be able to detect Earth? Or would the gas giants overpower their observations?

These epic, star-spanning adventure stories blend interstellar action with political allegory and romantic drama. Here’s where to start.

The alien invasion has long been a staple of science fiction, whether it's a high-octane thriller like Steven Spielberg's War ...

From stranded astronauts to first contact and alien intelligence, these five sci-fi novels should fill the gap on your ...

A UFO researcher claims that he has spoken to 700 alien abduction survivors, and what they said helped him find religion.

George R.R. Martin published many excellent stories before A Song of Ice and Fire. These five are some of the best, and still well worth reading.

Explore iconic long-running sci-fi shows driven by brilliant high-concept ideas that captivated audiences for years, from ...

This article contains major spoilers for the movie 'Project Hail Mary,' especially regarding Grace's past, Rocky's true ...

You saw the photos, didn't you? A vision from another world, haunting the night sky. People questioned everything – aliens, ...