Dark matter may be an illusion caused by the quantum vacuumDark matter may be an illusion caused by the quantum vacuum by Lisa Zyga , Phys.org (PhysOrg.com) -- One of the biggest unsolved problems in astrophysics is that galaxies and galaxy clusters rotate faster than expected, given the amount of existing baryonic (normal) matter. The fast orbits require a larger central mass than the nearby stars, dust, and other baryonic objects can provide, leading sc
