Dark matter halos in the Uchuu simulation

This portion of the universe generated from dark matter halos in the Uchuu simulation shows the distribution of galaxies and quasars up to billions of light-years away. The image shows different types of cosmic objects observed with DESI—bright galaxies, massive red galaxies, star-forming galaxies, and quasars—represented in different colours. A box enlarges the nearest region, where the cosmic web can be seen: the large-scale network of structures formed by galaxies. Although spectacular, this image corresponds to less than 0.1% of the total volume of the cosmological map, corresponding to three years of observations, recently published by DESI. Credits: E. Fernández-García et al. (2025). ‘DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG’

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This portion of the universe generated from dark matter halos in the Uchuu simulation shows the distribution of galaxies and quasars up to billions of light-years away. The image shows different types of cosmic objects observed with DESI—bright galaxies, massive red galaxies, star-forming galaxies, and quasars—represented in different colours. A box enlarges the nearest region, where the cosmic web can be seen: the large-scale network of structures formed by galaxies. Although spectacular, this image corresponds to less than 0.1% of the total volume of the cosmological map, corresponding to three years of observations, recently published by DESI. Credits: E. Fernández-García et al. (2025). ‘DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG’