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.

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 ...

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.

October is shaping up to be a surprisingly intriguing month for sci-fi books, with familiar worlds being reinvented, ...

All seasons of Stargate SG-1 are now streaming on Netflix, Prime Video, Pluto TV, and MGM+. The media could not be loaded, ...

Prime Video is stocked full of formidable sci-fi movies worth a watch. The films put together in this list are the best of ...

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

The alien intelligence we’ve been searching for may already be here, hiding in what emerges between its architecture and ours.