Another interesting consequence of relativity is that as time stretches out at high speeds, distances diminish. It’s hard to ...

Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

The expansiveness of the universe could make interstellar communication difficult, even for the most advanced civilizations.

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most ...

Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light ...

An astrophysicist has proposed an intriguing explanation for why humanity has never made contact with an extraterrestrial ...

But that's where the fun ends. The post NASA Scientist Proposes Theory of Alien Civilizations Throughout Milky Way appeared ...

The idea was that as an alien civilization advances, its technology becomes too sophisticated for us to detect. We could ...

Harvard's Avi Loeb gives a '40% chance' that interstellar object 3I/ATLAS is alien technology, citing 'anomalies' like pure nickel gas, a sunward jet, and a 'finely-tuned' trajectory.

NASA’s discovery of potential evidence of ancient life on Mars means “our galaxy could be teeming with life,” says a ...

Brian Lacki has released a set of three prepublication studies attempting to rationalize and measure the odds of a ...