Ray Davis Jr. used it in the 1960s to demonstrate the existence of particles called solar neutrinos. Davis and a colleague named John Bahcall wnet on to win a share of the 2002 Nobel Prize for physics for their work.. This site is ideal for experiments because its location is largely shielded from cosmic rays that could interfere with efforts to prove the existence of dark matter, which is thought to make up nearly a quarter of the mass of the universe. This lab will certainly help scientist set up the first dark matter experiment called the Large Underground Xenon detector experiment (LUX), which will get them a greater insight into the Big Bang explosion believed to have formed the universe. After its completion, this lab will be a site for many such groundbreaking experiments and currently work is on to stabilize the tunnels and install new infrastructure at an estimated cost of $550 million.