from theregister.co.uk: The most sensitive dark matter detector ever built has failed to detect any dark matter. It's not yet a problem for the instrument, the LUX Dark Matter Collaboration that The Register described here and here. What it might mean is, in an echo of the kind of iterative narrowing-down that characterised the hunt for the Higgs-boson, a re-drawing of the boundaries around where to seek the stuff. Over at Nature, the scientists explain that after running the LUX experiment for 110 days, no statistically significants were detected. The 160 events that were spotted are well within the level that would be generated by background radiation not screened out by the rock and water that surrounds the detector.