The dark matter search programme has been running for forty years. Underground detectors, particle colliders, space telescopes, and axion experiments have all returned null results. No dark matter particle has been detected. Not one.
BFUT Papers 18 and 25 give the reason: there is no dark matter particle. The gravitational anomalies are produced by organised deformation of the Spaticle substrate — the physical medium of space itself.
The DD-1 Equation
BFUT Paper 18 derives the DD-1 domain equation from the covariant substrate carrier equation F1-cov. The rotation velocity decomposition is:
where v_b is the standard baryonic contribution and v_s is the Spaticle field contribution from rotational entrainment. No dark matter parameter appears. The entrainment parameters λ = 136 − 68f_b and γ ≈ 1.9 follow directly from ρ_s through the galaxy's baryonic fraction f_b.
175-Galaxy Validation
The DD-1 equation was calibrated on 20 galaxies. The calibrated parameters were then fixed and never adjusted. The formula was applied to 175 SPARC galaxies: χ² = 1.31. For comparison, MOND achieves χ² = 1.47 on the same sample. The BFUT formula uses two global parameters fixed once for all 175 galaxies. No per-galaxy dark matter halo tuning.
KiDS-1000 Weak Lensing
The same ρ_s that governs rotation curves also governs weak gravitational lensing. KiDS-1000 results: BFUT χ² = 0.007–0.067 across four stellar-mass bins. NFW dark matter profile: χ² = 5.77–6.57. The improvement is not marginal.
Six Independent Sectors
ρ_s is independently constrained from six sectors spanning forty orders of magnitude: W/Z boson masses (±0.015%), electroweak mixing, 175 SPARC rotation curves, KiDS-1000 lensing, GW170817 relaxation τ ≈ 6.8 ms, and hydrogen atomic stability. Every sector gives the same substrate density. One physical entity, six independent confirmations.
Why Particle Searches Will Always Return Null
Dark matter particle searches detect discrete nuclear recoils from particle collisions. The Spaticle field is a continuous medium. It does not produce discrete scattering events in the way particle dark matter would. The searches are looking for something that does not exist. The phenomenon they are correctly detecting is produced by the medium of space itself.
Download BFUT papers, simulation code, and companion materials: vijayshankarsharma.com/downloads/