The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

What if the closest intelligent aliens aren’t light-years away in deep space, but buried millions of years deep in our own planet’s geological history? This mind-bending concept explores whether Earth ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Black hole Dyson spheres could harvest immense energy while releasing waste heat detectable by current telescopes. (CREDIT: ...

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 ...

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

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper. Reading time 3 minutes In our search for life beyond Earth, we might ...

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 ...

For as long as we’ve been exploring space, the search for alien intelligence has followed a familiar script. We point antennas at the sky. We listen for radio signals. We scan for massive structures ...