Marco Galoppo

Using Cosmicflows-4++, scientists directly estimated relativistic corrections and found that curvature contributes about 10% to the expansion dynamics on scales up to 300 Mpc/h, while kinematic backreaction is negligible. This challenges the globality of ΛCDM and threatens systematic errors in cosmo

The diagnostic parameter \(\tilde{\alpha}\) reveals that in galaxies and clusters, the post-Newtonian approximation loses reliability due to accumulated nonlocal gravitational correlations. Its value skyrockets precisely where dark matter is traditionally invoked—and this finding could overturn our

In the early Universe, black holes sprang directly from clumps of dark matter. But collapse only kicked in where the matter formed broad, gently sloping hills, not sharp peaks. These primordial holes became the seeds of the giants at the centers of galaxies — allowing them to grow huge in a short ti