The first images of the Lumina simulation unveil the childhood of the Universe

Researchers from Harvard University and MIT have unveiled results from their massive simulation, Lumina, which explores how the first stars and galaxies reionized the universe's atoms. This simulation involved 432 billion elements within a cube measuring 1.63 billion light-years, covering the universe's first two billion years. Utilizing the Frontier supercomputer, the simulation required over 20% of its capacity, equivalent to 100,000 processor cores and 15,000 graphics cards. This effort aims to provide insights into the large-scale structures of the universe and galaxy formation.