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The End of the World as we Know it
The death of the sun will be spectacular but we won’t be around to see it. ÃÛÑ¿´«Ã½ science expert Richard Black explains how the dying star will consume our solar system.
Also on the programme, how a cash economy works.
ÃÛÑ¿´«Ã½ World Service Archive
This programme was restored as part of the World Service archive project