galaxy

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The Dark Energy Survey presents the most accurate view of the evolution of the universe

    From The Florida News Times, May 28, 2021: A highly accurate analysis of the DES data from the first three years of the study, show hints from previous DES data and other important experiments in the universe today are a few percent less than expected. The Dark Energy Survey Camera (DECam) used in the survey was specially designed for the Dark Energy Survey, and was funded by the Department of Energy (DOE) and built and tested at DOE’s Fermilab.

    Antimatter galaxies: if they existed “They could generate the most explosive event after the Big Bang”

      From RECCOM Magazine (Italy), May 17, 2021: Dan Hooper talks about the possible existence of another universe. Physicists believe the Big Bang created equal amounts of matter and antimatter in the early history of the universe – but they can’t explain how antimatter vanished. Perhaps it is not and it resides isolated in some remote regions of our universe.

      Dark Energy Survey completes six-year mission

        From Jumbo News, March 31, 2021: Fermilab’s Josh Frieman, Tom Diehl, Antonella Palmese, and Rich Kron as part of the Dark Energy Survey collaboration, have completed scanning a quarter of the southern skies for six years and cataloguing hundreds of millions of distant galaxies.

        The perplexing question of missing cosmic antimatter

          From Forbes, Feb. 10, 2021: Fermilab scientist Don Lincoln explains why there should be equal amounts of matter and antimatter in the universe. There aren’t. He discusses several current theories that try to explain the discrepancy. Better understanding this imbalance is an aim of ongoing experiments, such as DUNE, which is being built at Fermilab.

          The spiral of the Southern Pinwheel

            From NOIRLab, Feb. 8, 2021: The Dark Energy Camera, originally used to complete the Dark Energy Survey, has taken the most detailed photo of Messier 83, also known as the Southern Pinwheel galaxy. (In DECam’s second act, scientists can apply for time to use it to collect data that is then made publicly available.) In all, 163 DECam exposures went into creating this image.

            By measuring light from individual stars between galaxy clusters, astronomers find clues about dark matter

              From Universe Today, Feb. 3, 2021: Recent published results from the Dark Energy Survey point to intracluster light — feeble light from rogue stars that don’t belong to a galaxy — as a potential pathway to measure dark matter. Fermilab scientist Yuanyuan Zhang contextualizes the findings.