THE TOP PHYSICS STORIES FOR 1998 were, according to us, the realization (based on observations of distant supernovas) that the cosmological expansion of the universe is not only not slowing but actually accelerating (Updates 355, 361) and the observation of neutrino oscillation (Update 375). Other highlights from last year included the mapping of the cosmic infrared background (Update 354), the localization of near-visible light (Update 356), Bose-Einstein research (Updates 362, 382, 402), progress in quantum teleportation (Update 356), the complementarity principle demonstrated for electrons (Update 362), quantum computing used to perform simple searches (Update 367), the detection of gamma rays from a high-magnetic-field pulsar (or "magnetar," Updates 374, 394), the idea of chaos- based computing (Update 389), Physics Nobel Prize (Update 396), low-field MRI (Update 398), direct observation of time-reversal asymmetry (Update 402), no end in sight for cosmic-ray energies (385), and some indication of CP violation in B meson decays (405).