BBC

Look inside a life-size model of a submarine which the Chinese hope will take humans to the very bottom of the ocean - the Mariana Trench, in the Pacific.

Deep underground, beneath Daya Bay in the south of China, scientists are hunting for the oddest particles in the cosmos - neutrinos.

Beautiful places threatened by mass tourism

The effects from riding four 'gyroscopes'

Is there any point in planting new trees?

The woman accused of leading one of Africa's biggest smuggling rings