Body language is a form of non-verbal communication, which consists of body posture, gestures, facial expressions, and eye movements. Humans send and interpret such signals almost entirely subconsciously.
From the formation of the earth and the emergence of life, to the advance of man and the growth of civilization.
Around the world, a new generation of astronomers are hunting for the most mysterious objects in the universe. Explore the Universe with entertaining video from the BBC archive.