gpronger writes: "The ATIC (Advanced Thin Ionization Calorimeter, http://atic.phys.lsu.edu/aticweb/) has potentially discovered the presence of dark matter close (only 3000 light-years) to our solar system. The system detected a large amount of high energy cosmic rays which match the theoretical signature of dark matter annihilating itself. The universe is believed to be composed of about 25% dark matter, but there has been little evidence of it. This discovery, if correct would be the first."
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