Scientists searching for extraterrestrial intelligence are testing a new possibility: alien civilizations might transmit ...

AI agents now help SETI Institute and Breakthrough Listen to operate radio telescopes and sift through space signals in real time, even before an observation ends.

Are humans alone in the universe, or could intelligent alien civilizations exist somewhere beyond Earth? For more than 60 ...

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 ...

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are dominated by several recurrent tropes. There's the invasion by a warlike ...

What if aliens were building a massive power plant?Last time, I talked about the "Kardashev scale," which classifies the ...

Finding a signal from an extraterrestrial civilization takes more than just pointing a telescope in the right direction. We ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how to introduce itself, it faces a less dramatic question: how much mass should ...

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 ...

In the coming month, humans are going to experience their first encounter with an alien civilization as predicted by blind Bulgarian mystic Baba Vanga in his 2026 year’s prophecy. Famed ...