Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies that have barely been explored. A first search using archived ALMA ...

What you'll discover in this article ・The Search for Extraterrestrial Intelligence has mostly focused on a narrow range of ...

Looking ahead: Existing radio surveys may contain signals that were never recognized as potential technosignatures. New ...

A recent study conducted by SETI has ventured into a previously uncharted territory in the quest for extraterrestrial ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that ...

Researchers are zeroing in on more deliberate “narrow-band” alien signals, well outside the radio frequencies SETI has ...

Throughout June 2026, SETI Institute scientists, affiliates, and collaborators contributed to discussions spanning ...

Critics dismiss President Donald Trump’s UFO whistleblower waivers as "kabuki theater," while astronomers quietly ...

SETI may have missed alien signals for 60 years because stellar plasma smears transmissions into noise, a new Astrophysical Journal study finds.

The recent, widely covered signal that's allegedly got SETI hot and bothered is almost certainly not aliens. But that doesn't mean it's not cool. Share on Facebook (opens in a new window) Share on X ...

Astronomers searching for signs of extraterrestrial intelligence may have been missing alien signals in part of the radio spectrum that has not recently been explored.

Astronomers might be hunting for alien signals in all the wrong places. A new ...