Imagine receiving a message from another world. Not from a distant galaxy millions of light years away, but from a planet orbiting the nearest star system to our own. A mysterious signal appears on ...

Somewhere out there, four alien civilizations might already know we exist—and their intentions could be far from friendly. Here's what science really says about it.

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that ...

Love it or hate it, artificial intelligence is likely here to stay. Its ravenous need for computational power has overwhelmed chip manufacturers and power companies alike. While our current AI ...

Researchers propose that tiny technological remnants from extinct alien civilizations could have landed on the moon after ...

The age of our universe and the commonality of Earth-like planets indicates the possibility of alien civilizations either ...

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...

(Esben_H/iStock/Getty Images Plus) The Fermi paradox asks: If there are other civilizations in the Universe besides ours, why haven't we yet made contact? Researchers who study this paradox – also ...

Scientists believe that tiny fragments of technology from potential extraterrestrials who disappeared long ago may have ...

Despite the alien hubbub and hoopla of the past few years, we still don’t know for certain if we are alone in the universe. We haven’t even found the tiniest scrap of evidence to suggest that there ...

For decades, SETI researchers have focused on finding narrow-band radio signals that might stand out from the natural universe. But what if an advanced civilization that wanted to communicate would ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...