Recent Comments

    Local Grup tagged posts

    Milky Way is embedded in a ‘large-scale sheet’ of dark matter, which explains motions of nearby galaxies

    January 30, 2026, Categories  Astronomy/Space

    The Milky Way is embedded in a 'large-scale sheet' and this explains the motions of nearby galaxies
    Various projections of the posterior mean density of the constrained simulation ensemble, normalized by the cosmic mean density. Credit: Nature Astronomy (2026). DOI: 10.1038/s41550-025-02770-w. https://www.nature.com/articles/s41550-025-02770-w

    Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local Group of galaxies (which includes the Milky Way and the Andromeda galaxy) must be organized in an extended plane. Above and below this plane are large voids. The observed motions of nearby galaxies and the joint masses of the Milky Way and the Andromeda galaxy can only be properly explained with this “flat” mass distribution...

    Read More