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Scientists develop the largest, most detailed | EurekAlert!

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Thesan is a new universe simulation that models the first billion years of the universe with the highest resolution, over the largest volume, to date.

image: Evolution of simulated properties in the main Thesan run. Time progresses from left to right. The dark matter (top panel) collapse in the cosmic web structure, composed of clumps (haloes) connected by filaments, and the gas (second panel from the top) follows, collapsing to create galaxies. These produce ionising photons that drive cosmic reionization (third panel from the top), heating up the gas in the process (bottom panel). view more Credit: Credits:Courtesy of THESAN Simulations It all started around 13.8 billion years ago with a big, cosmological "bang" that brought the universe s

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