Abstract
A numerical simulation of cosmic structure formation reproduces both large- and smaller-scale features of a representative volume of the Universe from early in its history to the present day. See Article p.177 Established cosmological models of galaxy formation and evolution have achieved limited success, failing to create the mixed population of elliptical and spiral galaxies that we observe. A new simulation that makes full use of the latest advances in computing power and algorithmic developments successfully recreates a population of ellipticals and spirals, reproduces the observed distribution of galaxies in clusters, the evolution of dark and visible matter and the characteristics of hydrogen on large scales, at the same time matching the metal (heavier than helium) and hydrogen content of galaxies on small scales. The calculation tracks the build-up of galaxies at unprecedented precision from shortly after the Big Bang until the present day, spanning more than 13 billion years of cosmic evolution.
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