CERN's Large Hadron Collider beauty (LHCb) Collaboration has discovered an entirely new particle, Xi-cc-plus, a heavy proton-like particle with two charm quarks. Compared to an ordinary proton, the particle is four times heavier and very unstable, lasting around 45 femtoseconds. The findings were first presented at the Rencontres de Moriond conference and will soon be detailed in a formal scientific paper. The LHCb is set to undergo a major upgrade starting this summer, which will yield more collisions and track particle decays with greater precision. Despite these short-lived particles being difficult to produce, these discoveries help explain unsolved mysteries surrounding the strong force that binds protons and neutrons.