If alien civilizations rise and fall, they may leave behind artifacts long after they are gone. From abandoned megastructures ...

Now, researchers in Switzerland and the U.K. have homed in on one particular aspect of this equation to contemplate how a ...

Eliezer Yudkowsky and Nate Soares have a new book titled If Anyone Builds It, Everyone Dies: Why Superhuman AI Would Kill Us ...

The Drake Equation looks like a simple way to estimate alien civilizations — but the implications are brutal. If the number ...

While some “unfilmable” novels have been successfully adapted, the books on this list might be too difficult to even attempt.

A quintessential episode of the original Twilight Zone run, "To Serve Man" was based on a short story by sci-fi writer Damon ...

Whether or not aliens exist, the SETI program has never stopped believing. Yet today, radio telescopes are no longer seen as the best way to ...

A mysterious interstellar visitor sparks fears of alien contact as Baba Vanga's prophecy predicts a colossal spacecraft in 2026.

But now, 60 years after the Prime Directive was introduced to Star Trek lore, Starfleet Academy has just evolved the ...

Democrats in America have a long and inglorious history of invoking “states’ rights” and shirking federal law.

A "crowdsourced" project in which home computer users were enlisted to help analyze radio signals from space is ending after more than two decades.

Star Wars has space wizards, laser swords, galaxy-spanning wars, and the most advanced civilizations imaginable.It also has a ...