Alien signals from 33 star systems: one narrow tone near the red star K2-155 passed FAST telescope filters, but the clues point to interference on Earth.

Add Yahoo as a preferred source to see more of our stories on Google. A high-frequency SETI search using ALMA opened new radio bands and showed that past surveys may have covered millions more stars. ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an exoplanet in an alien star system. New research suggests that radio emissions from intelligent aliens may be ...

For decades, the search for extraterrestrial intelligence (SETI) has largely operated on the assumption ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Scientists have searched the skies for alien radio signals for more than 60 years, but all ...

This is the Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope in the Chilean Andes. Here, it’s observing the sky on a night when the moon (not pictured) brightens the darkness. Now, ...

Staring into the starry night sky convinces many of us that we can’t be alone in this universe. So far, astronomers have been looking for alien signals in a specific part of the radio spectrum, which ...

ALMA's DV-59 antenna in the foreground with multiple other antennas observing the sky in a night dominated by the Moon. Astronomers searching for signs of extraterrestrial intelligence may have been ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

・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 ...

The search for alien radio signals has spent decades listening in a familiar part of the spectrum. A first-of-its-kind survey now suggests that unexplored higher frequencies could widen the hunt, ...