dark matter. Apparently, the majority of the physical universe consists of material that science has not yet been able to detect. The large majority. As Martin Rees admits, “it’s embarrassing that more than ninety per cent of the universe remains unaccounted for. Even worse,” he continues, when we realize that the source of this undetectable bulk of our universe may reside in entities that are subatomic, or bodies millions of times more massive than our sun. The portion we can see and measure is miniscule: “The atoms that comprise our bodies and that make all visible stars and galaxies are
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