The Ghost Particle Detector Buried Deep

Deep beneath a Japanese mountain lies a massive tank filled with 50,000 tons of ultra-pure water. It waits in total silence to catch elusive ghost particles called neutrinos that fly through your body every single second.

To keep out interference from cosmic radiation, this detector is buried 3,000 feet underground in an old mine. When a neutrino finally crashes into a water molecule, it creates a faint flash of light captured by thousands of golden sensors lining the walls. This setup allows scientists to observe the hidden behavior of the universe and even track the birth of distant stars. It is essentially a giant eye looking for the smallest pieces of matter in existence.