If forced to choose one descriptor for the octopus, the best word may be “otherworldly.” These truly amazing marine animals ...

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

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

For years, the search for alien life has focused on Earth-like planets orbiting distant stars. But this episode explores a more surprising possibility: giant moons circling massive worlds may offer ...

Earth’s sky is only one version of a cosmic phenomenon. Other planets offer skies filled with strange colors, thick ...

Behind the acid blood and jump scares of the Alien franchise is an even more insidious horror: a single employer with ...

Did you ever hear of the Syfy comedy starring Alan Tudyk called Resident Alien? The concept is an alien crashes on Earth and ...

A famous corporate mascot inspired the alien suits in a classic "The Twilight Zone" episode. The writer later said the ...

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