The great neutrino mystery could point to missing particles
From Wired, December 5, 2021: Years of conflicting measurements have led physicists to propose a “dark sector” of invisible particles that could explain dark matter and the universe’s expansion. Now, four analyses released yesterday by the MicroBooNE experiment from Fermilab and another recent study from the IceCube detector at the South Pole both suggest that these more complex neutrino theories may be on the right track—though the future remains far from clear.