All articles tagged with #dark matter sheet
New simulations using 31 isolated nearby galaxies show the Milky Way sits in a pancake-shaped sheet of dark matter extending up to ~10 Mpc. This structure naturally explains the Local Sheet, Local Void, and the quiet Hubble flow within ΛCDM, without new physics, per Wempe et al. in Nature Astronomy.
New simulations suggest the Milky Way sits within a flat, sheet-like dark matter structure spanning tens of millions of light-years, damping inbound galaxy motions and solving long-standing mass and velocity discrepancies that spherical models could not explain. The sheet aligns with the Supergalactic Plane and implies a higher Local Group mass (~3.3 ± 0.6 trillion solar masses) within a broader anisotropic dark matter geometry that shapes the nearby cosmos and possibly early-universe structure.