Quark physics is a subfield of particle physics that focuses on the study of quarks, which are elementary particles that combine to form protons, neutrons, and other particles called hadrons. Quarks are fundamental building blocks of matter and are held together by the strong force mediated by particles called gluons. Research in quark physics aims to understand the properties of quarks, their interactions with each other, and their role in the structure of atomic nuclei and other particles. Scientists study quarks through experiments conducted at particle accelerators, where high-energy collisions can probe the inner workings of quarks and their interactions. Quark physics has led to significant discoveries, such as the development of the theory of quantum chromodynamics (QCD), which describes the strong force that binds quarks together. Understanding quarks and their interactions is essential for explaining the structure of matter at the most fundamental level and for advancing our understanding of the universe.