The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Turbulent star environments may broaden alien radio signals, making them harder for SETI to detect. (CREDIT: Shutterstock) Radio ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...

The Deep Space Network (DSN) is just the sort of tool aliens could one-day detect, transmitting from Earth. Credit: NASA/JPL What if the first signal ever detected from an alien lifeform wasn't a ...

Here’s what you’ll learn when you read this story: The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we ...

Here's what you'll learn when you read this story: Even the most sophisticated radio arrays have not yet detected any signals that could have possibly been beamed through space by aliens. But maybe we ...