Planets larger than Earth but smaller than Neptune – so called sub-Neptunes – are the most common type of known exoplanet. It ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and ...

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp.

Is 3I/ATLAS an interstellar spy? Scientists investigate 13 anomalies of the solar system's new visitor, from its 'anti-tail' ...

Mathematics also features in a 1998 novella by Ted Chiang called Story of Your Life, which was adapted into the 2016 film ...

And even if they were to happen across the probes, finding a way for aliens to discover where and when they were made is not ...

Local officials accuse immigration agents of "recklessly using power", as federal authorities say the officer fired shots in ...

When the most dramatic close-up of an alien visitor remains behind the closed door, the vacuum is quickly filled. This has become the case with the comet 3I/ATLAS which is one of the rare bodies in ...