Technosignature research is heating up, with plenty of papers speculating on the nature, and sometimes the longevity, of signals created by technically advanced extraterrestrial civilizations. While ...

Add Yahoo as a preferred source to see more of our stories on Google. The fossilized tail bones of an Ichthyosaurus, around 190 million years old and weighing 800 kilograms. - Markus Scholz/picture ...

Scientists searching for advanced alien civilizations have detected a mysterious signal in data from the world's largest ...

The idea that an advanced civilization existed on Earth long before humans is fascinating, but scientists aren't convinced.

Adrift in a great sea of stars, we must surely not be alone. It's hard not to look at the night sky and think about the possibility of other civilizations out there. From the philosophical ...

Add Yahoo as a preferred source to see more of our stories on Google. Collage of a telescope under a starry sky and a planet in space. Earthlings, brace yourselves: the galaxy may be emptier than your ...

Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light-years distant. Yet despite the odds, scientists insist that continuing the ...

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 ...

When we imagine what a 'highly advanced civilization' might be like, many people probably picture a civilization that expands outward, such as traveling to other stars or colonizing other planets.

I Know the Previous CivilizationIf I were to say, “Humanity is not the first civilization,” what would you think? Most people ...

Introduction : our cultural Amnesia -- Adena, first civilizers of North America -- Who were the Adena? -- The keltic fingerprint on prehistoric America -- Hopewell masters of ceremony -- Who were the ...

Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien civilizations out there? Probably short-lived — and doomed to fail spectacularly ...