Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola Superdeep Borehole is the deepest manmade hole, and deepest artificial point ...

A team of researchers has confirmed the discovery of the deepest known blue hole on the planet in the waters of Chetumal Bay, Mexico. Detailed in a study published in Frontiers in Marine Science, the ...

Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we ...

The Indian Ocean holds the lowest gravity anomaly on Earth, a vast and subtle depression in the planet’s gravitational field located south of Sri Lank.