The Silurian Hypothesis asks whether signs of truly ancient past civilizations would even be recognisable today.

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

Body Problem to Leviathan Wakes, these are the best and most riveting sci-fi thriller books released over the last quarter ...

Beyond These Stars launches October 15, 2026 on Steam, GOG, Epic Games Store, and PC Game Pass as a complete 1.0 city builder ...

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

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

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

After decades of secrecy, stigma, and sometimes silliness—like the conspiratorial tales about recovered spacecraft and alien remains at a place known as Area 51 in Nevada—the government has at long ...

Somewhere in the Universe, an alien culture may have developed the technology to build giant megastructures around stars, harnessing their energy on an unimaginable scale.

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: ...

Add Yahoo as a preferred source to see more of our stories on Google. A high-frequency SETI search using ALMA opened new radio bands and showed that past surveys may have covered millions more stars. ...

Black holes appear built to hide energy, not advertise it. Yet a civilization wrapping one in vast collectors could create a detectable glow, turning one of the universe’s darkest objects into a ...