Astronomy is the earliest science known to man. But why does Britain go on researching into the origins of distant galaxies? And why do we need to do any basic scientific research at all? What's the commercial benefit from our science?
"Horizon" looks at the future of The Royal Greenwich Observatory, caught in the middle of a 'rationalisation' of British research, and asks if the study of the stars, along with every other pure science, is something that we can afford not to do.
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