US turns gold mine into giant fridge to study ghost-like neutrinos

In a converted gold mine in South Dakota, researchers are constructing massive, super-cooled containers to hold liquid argon for the Deep Underground Neutrino Experiment. The experiment aims to study neutrinos with high precision and detect those from astrophysical sources like the sun or a nearby supernova. The detectors will be shielded from cosmic rays by being placed underground, allowing for a clearer signal of neutrinos, the first particles emitted by the Big Bang.