Here are the best types of Klingons in the main "Star Trek" timeline, ranked from worst to most likely to actually get into ...

Interstellar, Alien, and Back to the Future are all among the all-time greatest sci-fi movies that deliver everything you ...

The Living Worlds Working Group proposes a revolutionary approach to finding life on distant planets. The paper, part of the design phase for NASA’s upcoming Habitable Worlds Observatory (HWO), ...

A classified response from the CIA has reopened debate around 3I/ATLAS. NASA calls it a comet, but rising speculation ...

Astronauts of the future may be radically different from the rest of us in physiology and psychology. So, to what extent ...

To Serve Man is a classic science fiction short story by Damon Knight, as well as one of the most frightening episodes of the ...

Harvard astrophysicist Avi Loeb's speculative claim that 3I/ATLAS could be an alien AI probe ignites scientific debate, NASA ...

Since its debut, "Star Trek" has introduced decades worth of new characters, locations, and alien races, but only a few disappeared from one day to the next.

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

The SYFY miniseries Childhood's End, based on Arthur C. Clarke's alien invasion novel, has an ending that you won't be able ...

When it comes to science fiction, there are numerous styles and flavors to choose from. That's what makes the genre so fun.

Frozen crystals of hydrogen cyanide, a poisonous substance, may have been essential to life on Saturn’s moon Titan, ...