SETI researchers may have missed alien signals due to a cosmic phenomenon that distorts narrowband radio waves, new research says.

For four decades, many SETI experiments have focused on finding sharp spikes in frequency but the new study says signals may not stay narrow as they travel away from their home system.

Add Yahoo as a preferred source to see more of our stories on Google. For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. But now, researchers at the SETI ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...

Institute has found that we may have missed transmissions from intelligent alien life for a very benign reason. SETI’s searches are focused only on very narrow signals, so the organization typically ...

Turbulent plasma near distant stars could blur ultra-narrow signals before they leave their home star systems - making them difficult to detect.

“The universe is not as quiet as we were told.” The line belongs to a dramatic retelling of a disputed signal claim, but it captures a sober scientific problem: the first technosignature humanity ...

The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

For decades, humanity has been looking for answers to unravel the mystery surrounding aliens’ existence, but they have failed ...