The first unmistakable sign of extraterrestrial technology may not arrive as a calm greeting. It may look more like a flare.

Plus, a list of other ways to possibly detect aliens ALIEN civilizations could be detected if they are using solar panel technology, researchers have suggested. Researchers believe aliens may be using ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

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 Harvard physicist who claimed the first interstellar visitor in 2017 was an alien craft, although the object has been determined to be a rock, says Earth needs to form treaties with ...

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

Readers of this blog know that I’m a big fan of Quora, because it lets non-experts raise the kinds of speculative questions that don’t normally come up in formal scientific discussions. One frequent ...

Scientists traditionally search for aliens by listening for radio signals coming from distant planets, but NASA proposes a new method that looks for pollution. Scientists suggest that if an exoplanet ...

For four decades, many SETI experiments have focused on finding sharp spikes in frequency but the new study says signals may ...