The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

The genre of science fiction has a lot to say about sleep. Here are 11 great stories, from TV, film and books.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Fans of the Predator franchise should check out these 15 other movies featuring alien threats, outer-space terror, and ...

These dust particles, finer than sand grains, originate from cometary tails and asteroid collisions, posing unseen risks to ...

When Leonard Nimoy flew to Yellowstone in August 1978 to shoot a scene for "Star Trek: The Motion Picture, " Mammoth Hot ...

About 470,000 “interesting” radio hits can still add up to zero. That was the practical outcome when astronomers aimed one of ...

David Bowie’s had a vigorous afterlife since dying in New York 10 years ago. He conquered Billboard’s album chart for the ...

Although revered today, classic sci-fi movies like Blade Runner and The Thing were widely misunderstood and underappreciated ...

Their brevity only magnifies their impact, proving that sometimes the smallest books can offer the best reading experience!, ...