It covers nearly three-quarters of our planet but the ocean floor is less mapped than the moon, an astonishing fact driving a ...

If you've ever wondered what lies beneath Antarctica's icy surface, then this map will blow your mind. Scientists documenting a hidden rocky world have revealed its terrain includes tall mountains and ...

The Arctic Circle — and the sovereignty of its biggest island, Greenland — is back in the international geopolitical spotlight. "We need Greenland for national security and even international security ...