A couple of decades ago, there were searches for proton decay basically looking at pure water over time, and these ruled out simplest non-SUSY GUT like SU(5) and SO(10). There are a variety of direct Dark Matter search experiments including CDMS II CRESST, EDELWEISS, and EURECA, DRIFT, MIMAC, PICASSO, and the DMTPC, DAMA/NaI, DAMA/LIBRA and indirect searches like AMANDA, IceCube and ANTARES. Thus far they are negative. More sensitive dark-matter searches are coming online. What if all such searches remain negative? Can Dark matter hypothesis be continuously adjusted to always evade falsification or can a null result from these experiments falsify dark matter? By what year (i.e 2020) can we expect enough accumulated data that if there continues to be null results, the dark matter hypothesis can be ruled out? http://dorigo.wordpress.com/2008/03/...ms-ii-results/ [Broken] SUSY more unlikely by the new CDMS II results "What I state above is the main reason for my dislike of Supersymmetry, an otherwise quite cunning theory – maybe the only really neat idea produced in the last thirty-five years on how to extend the Standard Model to mend its shortcomings. I really hate it when I have to buy something without being able to look inside the package, but worse still is the feeling of being cheated when you are purposely prevented from doing so -the exact sensation that the mechanism of SUSY mass breaking gives me." "As I said right at the start, the parameter space of these models is so wide that a chunk always remains untouched. But, for those of us who did not believe in SUSY in the first place, this is just a nice confirmation." http://arxiv4.library.cornell.edu/abs/1005.0761 [Broken] SUSY dark matter in light of CDMS II results: a comparative study for different models Authors: Junjie Cao, Ken-ichi Hikasa, Wenyu Wang, Jin Min Yang, Li-Xin Yu (Submitted on 5 May 2010) Abstract: We perform a comparative study of the neutralino dark matter scattering on nucleon in three popular supersymmetric models: the minimal (MSSM), the next-to-minimal (NMSSM) and the nearly minimal (nMSSM). First, we give the predictions of the elastic cross section by scanning over the parameter space allowed by various direct and indirect constraints, which are from the measurement of the cosmic dark matter relic density, the collider search for Higgs boson and sparticles, the precision electroweak measurements and the muon anomalous magnetic moment. Then we demonstrate the property of the allowed parameter space with/without the new limits from CDMS II. We obtain the following observations: (i) For each model the new CDMS limits can exclude a large part of the parameter space allowed by current collider constraints; (ii) The property of the allowed parameter space is similar for MSSM and NMSSM, but quite different for nMSSM; (iii) The future SuperCDMS can cover most part of the allowed parameter space for each model.