Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

A provocative theory circulating among artificial intelligence researchers suggests that once machines achieve human-level intelligence and beyond, they might create something entirely unexpected: a ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here. One of the persistent ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

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 ...

Do Aliens Speak Physics?: And Other Questions about Science and the Nature of Reality (Whiteson & Warner, 2025) is a mind-bending exploration into what it would mean, scientifically and ...

That is where Anonymous Chicken keeps tripping up. A species that uses touch or echolocation as its primary sense and has manipulative appendages could potentially develop a technological civilization ...