Brian Clegg has written many science books, published by Icon and St. Martin's Press. His most recent book for Icon was The Reality Frame. His Dice World and A Brief History of Infinity were both longlisted for the Royal Society Prize for Science Books. He has written for Nature, BBC Focus, Physics World, The Times and The Observer.
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All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too litt... SEE MORE