Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some have already been found. Thanks to rapidly advancing telescope technology, ...

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

Aliens could be chatting with each other in plain sight using light flashes like fireflies, scientists say - Alien signals may not have inherent meaning, but just meant to stand out against cosmic bac ...