For decades, carbon has resisted the magnetic order that defines so many useful materials — but a coalition of researchers across eight Asian institutions has now coaxed graphene itself into ferromagnetism at room temperature, not through contamination or exotic conditions, but through the geometry of emptiness. By growing a hyper-porous graphene network on a silicon wafer, the team demonstrated that the spacing between exposed atomic edges — not defects, not impurities — determines whether a carbon material's quantum spins reinforce or cancel one another. The result is a magnetic signal one t