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Definition: Hubble Space Telescope (HST) is a space telescope named after renowned astronomer Edwin Hubble. It was launched in 1990 and is one of the great observatories of NASA. Description: Hubble ...

Mathematical equations have shaped our understanding of the universe, and these nine have played a key role in changing the world.

A landmark study reporting the discovery of Australopithecus africanus one century ago put the African continent at the centre of the story of humanity. Overcrowding can lead to disaster, and yet ...