To determine whether sterile neutrinos exist, researchers at Fermilab have constructed two new detectors as part of the Short-Baseline Neutrino (SBN) Program that they hope will resolve the situation once and for all.

From the Department of Energy Office of Science, July 13, 2022: DOE announced $78 million in funding for 58 research projects that will spur new discoveries in high energy physics. The announcement covers a wide range of topics at the frontiers of particle physics, including Fermilab’s Muon g-2 and the MicroBooNE experiments.

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.

From Universe Today, November 5, 2021: Neutrinos might make up a small portion of dark matter, but most dark matter must be something else. Because neutrinos are so close to satisfying the properties of dark matter, some scientists have argued dark matter might be a yet undiscovered variety known as sterile neutrinos.What did Fermilab’s newest experiment MicroBooNE see?