Earth" planet named HD 20794 d, located 20 light-years away, which could have conditions suitable for life.

Beneath the surface of our planet, at a depth of about 1,800 miles, lie enigmatic objects. These extraordinary formations are located at opposite ends of the Earth: one under the region of Africa ...

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?