Researchers from the search for extraterrestrial intelligence (SETI) may have figured out why we have not detected any alien ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Alien hunters update guidance on sharing news of possible intelligent life. Scientists searching for intelligent life beyond Earth have updated their guidance on how the world should be told if a ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it appeared in July 2025.

A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an ...

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 ...

Using emerging radio techniques refined during and after the Second World War, the astronomers detected a powerful radio ...

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 ...

On August 15, 1977, the Big Ear Radio Telescope in Delaware, Ohio, received the most powerful signal it would ever detect during its decades of observations. The signal lasted just 72 seconds, but ...