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New "Stealth Dark Matter" Theory May Explain Universe's Missing Mass

10/02/2015 04:41PM

New "Stealth Dark Matter" Theory May Explain Universe's Missing Mass

Dark matter makes up 83 percent of all matter in the universe and does not interact directly with electromagnetic or strong and weak nuclear forces. Light does not bounce off of it and ordinary matter goes through it with only the feeblest of interactions. Lawrence Livermore National Laboratory (LLNL) scientists have now come up with a new theory that may identify why dark matter has evaded direct detection in Earth-based experiments. They believe that even though dark matter is naturally "stealthy" today, it would have been easy to see via interactions with ordinary matter in the extremely high temperature plasma conditions that pervaded the early universe.


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