When astronomers first picked up a perfectly regular radio heartbeat from deep space in 1967, some of them half-jokingly ...

The interstellar visitor 3I/ATLAS has turned into one of the strangest shows in the sky, shifting to a vivid blue and ...

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

Scientists claim that first extraterrestrial contact will be a loud event impossible to ignore, not a subtle signal.

Advanced aliens could be chatting with each other using light flashes in plain sight, similar to how fireflies communicate, according to a new study that could lead to new approaches in finding ...