Extraterrestrial life could betray itself not in the molecules themselves, but in their arrangement. A recent study shows that living systems leave distinctive statistical patterns in their ...

This could be why we still haven’t found alien life - Traces left behind by organisms on alien worlds may be too subtle to detect ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

The Trump administration announced the release of newly declassified Unidentified Anomalous Phenomena records, launching a Department of War website to provide public access to government files as ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines a very different kind of solar system that could harbor life-forms we haven ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

Astrobiologists are raising concerns that humanity’s search for alien life may be limited by the very tools designed to find it.

Do aliens exist? Could Earth really be the only planet hosting intelligent life? Debates over the existence of extraterrestrials date back to the earliest Indigenous and western thought. The tools ...

Disclosure Day, the upcoming sci-fi movie from director Steven Spielberg, revolves around a plot to prove that aliens exist.

Aliens have invaded the news again. Last month, two US presidents weighed in on the topic in rapid succession, managing to make a public that was already obsessed with extraterrestrials even more so.

Add Yahoo as a preferred source to see more of our stories on Google. White House correspondent Peter Doocy reports on the Trump administration's release of the first batch of UFO and "alien life" ...