The Mariana Trench is one of the most mysterious places on Earth. Measuring almost seven miles (37,000ft) deep, the trench sits on the floor of the Pacific Ocean and is so difficult to reach that just ...

MYSTERY “UFO sounds” recorded from under a lake in the USA have sparked a bizarre alien base conspiracy. But science may have some more mundane explanations as to where this Martian noise is coming ...

Listen to the alien-like noise spookily heard from the depths of the ocean in the above recording THE mystery of an “alien song” heard coming from the deepest point on Earth has finally been solved.

Just what is the plan if we detect life beyond Earth? As Siân Boyle discovers, there remain surprisingly few contingencies for news that we are not alone in the universe If human beings were to detect ...