Researchers have uncovered a hidden magnetic order in the pseudogap phase of a quantum material, a long-standing mystery in superconductivity research. Using an ultracold-atom simulator based on the Fermi-Hubbard model, the team detected antiferromagnetic correlations emerging above the superconducting transition. The discovery provides fresh insight into how superconductivity develops and could help scientists design materials that superconduct at higher temperatures, advancing future energy and technology applications.