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' ...

The desert formations of the Pinnacles in Australia look like something out of a sci-fi movie — but they’re very real.