Space is full of electromagnetic radiation like radio signals, but those signals are usually coming from stars or black holes, not planets.

Humans have been searching the stars for alien radio signals for decades — and so far, E.T. has not phoned home. But that doesn’t mean intelligent life isn’t out there, a new study hints. Rather, ...

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 ...

Could the interstellar object 3I/ATLAS exhibit technosignatures, or signals of alien technology? This is what a recent study published in The Astronomical Journal hopes to address as a team of ...

For the first time, astronomers have detected radio signals from a planet beyond our solar system, according to a study available on the preprint server arXiv. The landmark observation offers a new ...

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, ...

We’ve been wondering if we are all alone in the universe for thousands of years. It hasn’t been until recently that we began a determined search of the heavens to see if extraterrestrial life is ...

Are there no alien signals to find... or do we need to update how we search for them? We’ve been looking for messages from the stars ever since Frank Drake pointed the Green Bank radio telescope at ...

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, ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we have the potential to see (or in some cases, listen) farther and more ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...