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caverta online review Previously, the authors' analysis only picked up very high-energy events; Ernie and Bert were about one Peta-electronVolt each (for comparison, the LHC's protons are at 4 Tera-eV). Now, they've extended the sensitivity down to as low as 30TeV, with 28 events spread throughout the range of energies between the two. Seven of these produced muons in the detectors, indicating that they were produced by the muon neutrino. The rest produced a shower of signals, suggesting that they originated from some other form of neutrino.