These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

A new scientific framework suggests that even if signals or physical traces from alien civilizations reached Earth, detecting ...

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

Advanced alien civilizations may communicate via a series of flashing lights, similar to how fireflies do, a new paper hints. This would potentially make extraterrestrials much harder to spot if we ...

The Kardashev Scale is one of the most widely discussed scientific frameworks for measuring the technological advancement of civilizations, from planetary energy use to controlling entire galaxies.

Add Yahoo as a preferred source to see more of our stories on Google. Collage of a telescope under a starry sky and a planet in space. Earthlings, brace yourselves: the galaxy may be emptier than your ...

After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced ...

The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not settled the matter, some UFO enthusiasts say.

Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien civilizations out there? Probably short-lived — and doomed to fail spectacularly ...