Former Pentagon UFO investigator Luis Elizondo claims the US government possesses unreleased photographs showing what appear ...

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

A flyby conducted by the Japanese spacecraft Hayabusa2 uncovered the asteroid's strange shape. Data gathered by the probe ...

Experts suspect this space rock is a piece of the lunar surface torn off by a meteor impact, so it could be a time capsule ...

With its sweeping curved exterior and towering glass façade, this remarkable building has drawn attention for its dome ...

Space science has a long tradition of bold claims followed by even bolder scrutiny. Some of the most headline-grabbing ...

Roger Ebert has championed plenty of sci-fi films, but he couldn't help but take down these sci-fi movies with some harsh words.

We've been looking at nature the wrong way, argues Rowan Hooper. If we stop focusing on the individual, we get a whole new picture of how life on Earth – and elsewhere – may have begun ...

Scientists have discovered extraterrestrial material inside a crater on Earth which they believe could rewrite what we know about life itself. Researchers studying the Hapcheon crater found layered ...