An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Case in point: Scientists from Tokyo University and Hokkaido University in Japan stumbled across some mysterious jet-black ...

If someone told you there’s a place in Wisconsin where the landscape looks like it was borrowed from another planet, you’d ...

James Webb uncovered exotic salt clouds surrounding the famous "Pink Planet," solving a long-standing mystery about one of ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Besiege Broken Beyond launched June 22 on Steam, adding inverse-square-law multi-body orbital gravity, 13 new space blocks, ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

The Exploration Rover for Navigating Extreme Sloped Terrain (ERNEST) test rover has been put through its paces with great ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be ...

For decades, the question of whether life exists beyond Earth has been the domain of science fiction writers and late-night ...