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Smithsonian scientists just recreated the first 2 billion years of the Universe ->ScienceDaily | More on "Early universe simulation and formation" at BigEarthData.ai | #Science

sciencedaily.comSmithsonian scientists just recreated the first 2 billion years of the UniverseThe research, published in Monthly Notices of the Royal Astronomical Society, reconstructs the universe's first 2 billion years by modeling the interactions between ordinary matter, dark matter, and radiation. By comparing Lumina's predictions with observations from JWST, Roman, and other telescopes, scientists can evaluate how well existing theories explain cosmic evolution and identify discoveries that might challenge their understanding of the universe's fundamental laws. Astronomers have spent centuries studying the sky and developing explanations for the formation of stars, galaxies, and other cosmic structures. Modern supercomputers now make it possible to turn these ideas into detailed simulations that predict how the universe should behave. When telescope observations agree with those predictions, they strengthen confidence in current theories. Unexpected differences, however, may point toward physical processes that scientists have yet to fully understand. "With JWST, the early universe has become an exciting new frontier in astrophysics," said lead author Oliver Zier, an ITC Fellow at the Center for Astrophysics | Harvard & Smithsonian. "To understand what we are seeing with this telescope, we need to translate our theories into detailed predictions. After several years of work, with plenty of ups and downs, it is incredibly rewarding to see the simulation results...

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