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

Is the rest of the cosmos a pristine environment awaiting the arrival of humanity’s “post-human” descendants? Or is advanced ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...

Even as the Trump administration continues to declassify government files on UFO sightings, the official position of the ...

Scientists say extraterrestrial life may exist elsewhere in the universe, but vast distances, enormous energy requirements ...

"Disclosure Day" director Steven Spielberg opens up to USA TODAY about aliens, AI and why he'll never quit making movies.

Steven Spielberg's claims of alien visits to Earth spark debate among scientists, who stress the lack of credible evidence ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

Thomas Mulligan examines the daunting possibilities of the Fermi Paradox and the Dark Forest theory to explain why the cosmos ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...