Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures ...

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

Are aliens real? The question has animated conspiracy theories for decades and enthralled at least one former president of the United States. In a recent interview, Barack Obama became the first ...

What: SETI Institute Artists-in-Residence present Exoplanetary Poetry, an art-science collaboration that trains artificial intelligence on exoplanet atmospheric chemi ...

In the third week of August 1977, Ohio State University astronomer Jerry Ehrman was going over a computer printout of signals collected a few days earlier from his university’s “Big Ear” radio ...

A recent theory proposed by a NASA scientist suggests that extraterrestrial civilizations may not possess the wildly advanced technology that many UFO enthusiasts expect. This perspective, which ...

Now, there may be an answer, according to a new paper published on the preprint site arXiv: The aliens are out there, alright ...

There's a definite buzz going around this month about aliens from other worlds, or hadn't you noticed? Former US President ...

Add Yahoo as a preferred source to see more of our stories on Google. Sometimes it seems like we got to the galactic party late and everyone has already gone home. Our species only figured out how to ...

Researchers at SETI (the Search for Extraterrestrial Intelligence) might be looking for the wrong thing, says one of SETI's astronomers in The Guardian. They're looking for aliens that are like us.