It turns out our galaxy isn't being dragged across space by some invisible 'dark' ghost—we're just being pulled toward a massive neighborhood structure we finally found.
April 6, 2026
Original Paper
Return to the Great Attractor: Strong Evidence for a Steradian-sized Flow Converging at ~70 Mpc within the GA Supercluster and Aligned with the CMB Dipole
arXiv · 2604.02470
The Takeaway
For years, scientists wondered why our galaxy is moving so fast through the universe compared to the cosmic background. New data confirms this motion is caused by a nearby cluster of galaxies rather than unknown, distant structures, clearing up a major mystery about our place in space.
From the abstract
We used the FourStar near-IR camera on Magellan-Baade to obtain high S/N H-Band imaging of 66 galaxies with radial velocities of 2000 < V < 5000 km/s. Our goal was to use the superior distance measurements of surface-brightness-fluctuations (SBF) to derive ``peculiar velocities'' to test claims that the CMB dipole anisotropy, equivalent to $\approx$600 km/s with respect to the Local Group, arises from a 'local' overdensity in the galaxy/dark-matter distribution -- the Great Attractor. SBF's abil