CH 3: Little Neutral Ones

We journey to one of the harshest places in the world: Siberia in winter. Deep beneath the frozen surface of the massive Lake Baikal is the world's first underwater neutrino telescope. Designed to detect the slipperiest of subatomic particles, the Lake Baikal Neutrino Telescope has pioneered the novel technique of using huge bodies of clear water (or ice) to look for particles from outer space that could point us to dense regions of dark matter in our galaxy. It's a story of hardy, dedicated physicists working on the cutting-edge of astroparticle physics—in a hauntingly beautiful part of the world.