Fundamental research takes on the unknown to uncover the secrets of the Universe, speaking the universal language of science. This event explores how Big Science, from huge particle accelerators to underground and space laboratories, acts as a powerful engine of dialogue, capable of overcoming political barriers and conflicts. We will look at the sociology of large-scale collaborations, where thousands of people work together across every geographical border, and at how sharing knowledge becomes a tool of diplomacy, building bridges of peace and global innovation.