I went a mile underground inside an abandoned gold mine ...for science!I was in Lead, South Dakota (next to Deadwood) to keynote their big public event called Neutrino Day where families come in from the surrounding areas to geek out about particle physics, which is so cool.I always adore a chance to geek out about neutrinos and subatomic particle collisions, but I was especially excited to get a chance to go one mile underground and see all the cool science taking place. The Sanford Lab is host to a particle accelerator, extremophile research, dark matter experiments and the Deep Underground Neutrino Experiment (DUNE). Check out what it was like!