Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

A thick shell "implies a longer route that oxygen and nutrients would have to travel to connect Europa’s surface with its ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also could have brought alien life to our planet. What evidence of this planet still ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory claims, but a comet.

His 1968 book, “Chariots of the Gods,” sold hundreds of thousands of copies, but one critic called it a “warped parody of reasoning.” By Mike Peed Erich von Däniken, the best-selling Swiss author and ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a technosignature. Reading time 3 minutes From the moment astronomers discovered ...