Edvard Munch Girls on a BridgeUnknown Artist Brent Heighton After the RainAlbert Moore silver
Dark matter ring in galaxy cluster Cl 0024+17. Some 96% of the universe is dark energy or dark matter. Photograph: Johns Hopkins University/Esa/Nasa
Even today, there are scientific phenomena that defy explanation. If history is anything to go by, resolving these of space and time, while dark matter appears to be holding all the galaxies together. No wonder cosmologists are searching for clues to their whereabouts.anomalies could lead to a great leap forward, so what are the greatest mysteries, and what scientific revolutions might they bring?1 The missing universeEverything in the universe is either mass or energy, but there's not enough of either. Scientists think 96% of the cosmos is missing. They have come up with names for the missing stuff - "dark energy" and "dark matter" - but that doesn't really tell us anything about them. And it's not as if they're not important: dark energy is continually creating new swaths
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