This New Simulation of the Early Universe Is Massive, Detailed and Gorgeous - CNET
The origin of the universe is one of the greatest scientific mysteries of all time. Scientists have developed numerous theories and testable predictions about how the universe began, including the Big Bang model, cosmic inflation and quantum-cosmology proposals.
To test those theories, researchers from the Center for Astrophysics, a collaboration between Harvard and the Smithsonian, assembled the Lumina Project, a simulation of the early universe far larger than any prior one.
The details of the simulation, published in the Monthly Notices of the Royal Astronomical Society (PDF), describe how regular matter, dark matter and radiation likely interacted during the first 2 billion years of the universe, covering a region equivalent to a cube roughly 1.5 billion light-years on each side.
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For reference, the prior champion for the largest early-universe simulation was the Thesan simulationin 2022, which simulated about a billion years of the early...
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