Astrophysicists cast doubt on link between excess positrons and dark matter
Friday, April 16, 2010 - 09:07
in Physics & Chemistry
(PhysOrg.com) -- Astrophysicists are looking everywhere - inside the Large Hadron Collider, in deep mines and far out into space - for evidence of dark matter, which makes up about 25 percent of the energy density of the universe.