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December 2023 - Physics Today cover image The Dark Energy Spectroscopic Instrument (DESI) will spend five years creating a 3-D map of the universe that will help reveal the nature of the dark energy driving cosmic expansion. The project's first six months of data show slivers of the universe that represent just 1 percent of the survey's ultimate volume of space. The colors represent different types of galaxies, including nearby bright galaxies in yellow, luminous red galaxies in magenta and galaxies with supermassive black holes in turquoise. Credit: Nadieh Bremer; Source: “The Early Data Release of the Dark Energy Spectroscopic Instrument,” by DESI Collaboration et al.; 2023 (data) Fermilab press release image: The crew moved the 2×2 prototype into place for insertion into the liquid argon cryostat, where it will collect data in the NuMI neutrino beam. Photo: Dan Svoboda, Fermilab CosmoPalooza 2023 - event logo banner For CMB-S4, a new set of telescopes will be built to map the light from the aftermath of the Big Bang in greater detail than ever before. The instruments will be installed at the South Pole (shown here) and in Chile. Geoff Chen A bare ITkPixV1 readout chip mounted to single chip carrier card for testing purposes. Credit: Timon Heim, Berkeley Lab BLDS image - Dan Dwyer (2019), Photo: Thor Swift, LBNL NGC 520 is one of the largest and brightest galaxies in the Siena Galaxy Atlas. It is made of two disk galaxies that will eventually merge together to form one massive system. NSF/AURA/NOIRLab/T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab) & M. Zamani (NSF’s NOIRLab) APS News article image Simons Foundation press release image BLDS image - DOE OS Modeling the Cosmic Web BLDS image - LuSEE-Night

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