A mile beneath the Black Hills, scientists are building giant detectors to analyse neutrino particles – and possibly find the answer to existence For more than a century, the mining town of Lead, in the Black Hills of South Dakota, attracted workers with a taste for gold. Now, a flagship experim...
Source: [Guardian International](https://www.theguardian.com/science/2026/oct/31/south-dakota-mine-search-secrets-universe-dark-matter-antimatter)