The search for intelligent alien life reaches far beyond simply finding another habitable planet. Across the universe, ...

Imagine a super-advanced alien civilization that needs insane amounts of energy way beyond our puny solar panels and wind turbines to power their mega-cities, AI overlords, or whatever interstellar ...

Interest in a mysterious 'lost continent' where believers claim an advanced civilization once existed has been rekindled ...

An alien weapon has been found on Mars, according to a top UFO researcher. RadarOnline.com can reveal an image taken by ...

If humanity ever makes contact with an intelligent extraterrestrial civilization, we will have no shortage of questions.

An alien weapon has been found on Mars, according to a top UFO researcher. RadarOnline.com can reveal an image taken by NASA's Curiosity rover shows a long, narrow formation protruding from rocky ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that signal has normally been based on our own current cutting-edge technology. But ...

The search for extraterrestrial life has evolved from philosophy to a serious scientific and national security concern ...

The debate about American grand strategy has long been shaped by familiar schools of thought: restraint, liberal internationalism, and primacy. But the intellectual movement that provided the ...

Scientists around the world have spent decades pointing radio telescopes at the sky, hoping to catch that one signal proving we’re not alone in the universe. But now researchers at SETI are asking: ...

Learn about the theories behind the unusual dimming of Tabby's Star, from alien megastructures to an orbiting companion ...