DAMA/LIBRA has claimed dark matter detection for a quarter century, and physics cannot make the claim die or live. The sodium-iodide experiment under Gran Sasso reports an annual modulation of its low-energy event rate, peaking in June and bottoming in December, exactly the phase expected as Earth's orbital velocity adds to and subtracts from the solar system's motion through a dark matter halo; the cumulative significance now exceeds 13 sigma across phases spanning more than twenty annual cycles. As a statistical signal it is unimpeachable; as dark matter it is contradicted by essentially every other experiment: the WIMP parameter space implied by the modulation was excluded long ago by xenon detectors orders of magnitude more sensitive.
The decisive test, the same target material run by other groups, has now reported: ANAIS-112, with sodium iodide in the northern hemisphere, finds no modulation, excluding DAMA's signal at greater than 3 sigma with matched methodology, and COSINE-100 in the southern hemisphere likewise finds results incompatible with the claim, removing the last model-independent refuge (that sodium's response differs from xenon's). Mundane explanations, seasonal environmental effects, muon-flux modulation, analysis artifacts in the energy-threshold region, have each been proposed and disputed by the collaboration, which maintains the signal's integrity while declining the level of data release that would settle the methodology questions.
The standing is a zombie anomaly: statistically monumental, physically orphaned, contradicted by replication, and sustained by an unresolved methodological dispute. Its persistence in the literature now measures the field's standards for extraordinary claims more than its dark matter content.