Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

The search for life beyond our solar system heated up this year when scientists reported a tantalising signal from an exoplanet of a molecule that is known to be produced exclusively by life on Earth.

Steven Spielberg is at the center of conspiracy theories, with claims circulating his highly secretive new UFO film may feature real aliens or extraterrestrial technology. RadarOnline.com can reveal ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

Federal prosecutors expand add against Alexander brothers weeks before trial, adding cruise ship assault allegations to sex ...

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just ...

Americans are becoming more open to the idea that aliens have visited Earth, according to a series of polls that show belief in alien visitation has been steadily on the rise since 2012. Moreover, ...

A federal judge on Monday said the U.S. government denied due process to the Venezuelan men it deported to a prison in El Salvador in March after President Trump invoked the Alien Enemies Act. The ...

Between February 2001 and March 2002, Gary McKinnon says he accessed unsecured U.S. government computers and found a document titled “non-terrestrial officers.” He claimed it listed “fleet-to-fleet ...