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The linked article is about the discovery and study of exotic hadrons, which are subatomic particles that do not fit the traditional models of hadrons. The article discusses the various types of exotic hadrons, including tetraquarks, pentaquarks, and glueballs, and how their discovery has challenged our understanding of the fundamental building blocks of matter. It also highlights the role of experiments at the Large Hadron Collider (LHC) in uncovering these new particles and the ongoing efforts to further explore the rich landscape of exotic hadrons.