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.

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

A simulated “alien” signal sent by a Nasa orbiter circling Mars has finally been cracked after months by a father-daughter duo, revealing the cosmic coded message. Nasa collaborated with SETI ...

For 21 years, the Arecibo Observatory in Puerto Rico searched the cosmos for signs of intelligent life. The giant radio telescope listened to faint cosmic whispers, hoping to catch a signal from ...

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

Earlier this week, astronomers were puzzling over an allegedly powerful burst of energy that seems to have emanated from the star HD 164595, located some 94 light-years away in the constellation ...

Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met ...

Add Yahoo as a preferred source to see more of our stories on Google. If Earth’s astronomical observatories were to pick up a signal from outer space, it would require an all-hands-on-deck effort to ...

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A new statistical study considers a narrower and ...

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.

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

Experts stress need for transparency while aiming to prevent premature announcements and protect scientists ...