Two massive, mysterious structures have been discovered beneath Africa and the Pacific ... are remnants of an ancient planet that collided with Earth 4.5 billion years ago—possibly a planet ...

NASA has been monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies ...

Earth is our home planet, and it's the only place in the universe ... through northeastern Africa. Lake Baikal in Russia is the largest and deepest freshwater lake, containing 5,521 cubic miles ...

The original series of Planet Earth featured a first-of-its kind ... all around the coast of South Africa. The working theory amongst many of us is that the same sharks that once frequented ...

Africa, south of the Sahara, is home to the richest diversity of animal life on the planet, including some of the largest mammals on earth. So why did the Africans never domesticate the rhino?