Where are all the aliens? We've yet to find life outside of that on Earth, but that doesn't mean scientists aren't looking.

Scientists searching for advanced alien civilizations have detected a mysterious signal in data from the world's largest ...

Scientists searching for alien signals may have stumbled upon a rapidly spinning dead star near the Milky Way’s center, but ...

The search for extraterrestrial intelligence (SETI) is mostly concerned with where to look for technosignatures from another ...

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 ...

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 ...

Finding a signal from an extraterrestrial civilization takes more than just pointing a telescope in the right direction. We ...

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.

What steps can be taken to identify why we haven’t received radio signals from an extraterrestrial intelligence, also called technosignatures? This is what a recent study published in The ...

Could our earliest radio broadcasts have been heard by alien worlds? Researchers suggest the waves have travelled over 100 ...

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 ...

On August 15, 1977, the Big Ear Radio Telescope in Delaware, Ohio, received the most powerful signal it would ever detect during its decades of observations. The signal lasted just 72 seconds, but ...