The first unmistakable sign of extraterrestrial technology may not arrive as a calm greeting. It may look more like a flare.

The history of astronomical discovery shows that many of the most detectable phenomena, especially detection firsts, are not ...

A new study explores whether extraterrestrial signals could have already reached Earth undetected, examining what that would imply for current searches. Credit: Shutterstock. Dete ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

What steps can be taken to identify why we haven’t received radio signals from an extraterrestrial intelligence, also called technosignatures? This is what a recent study published in The ...

A new scientific framework suggests that even if signals or physical traces from alien civilizations reached Earth, detecting ...

A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before ...

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...