Hunting the nearly un-huntable

The MINOS and Daya Bay experiments weigh in on the search for sterile neutrinos. In the 1990s, the Liquid Scintillator Neutrino Detector (LSND) experiment at Los Alamos National Laboratory saw intriguing hints of an undiscovered type of particle, one that (as of yet) cannot be detected. In 2007, the MiniBooNE experiment at the US Department of Energy's Fermi National Accelerator Laboratory followed up and found a similar anomaly. Today scientists on two more neutrino experiments--the MINOS exper...