The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may appear as a brief, violent spike in the data a burst so unusual that it ...

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

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

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

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 ...

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

If it were a phone call, we might call it a butt dial: A strong radio signal that set off questions about whether it emanated from an advanced alien race earlier this week is now believed to have come ...

One of the longest-standing techniques in humanity’s search for life beyond Earth may be causing scientists to miss alien signals entirely, a new study finds. Since the very beginnings of the search ...

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search ...

Scientists reveal one key way we might have missed signals from aliens - ‘Smearing’ of signals could mean that there are messages we are missing, researchers say ...