Galaxy research is the study of the vast systems of stars, gas, dust, and dark matter that make up galaxies. This field of study involves observing and analyzing the structures, dynamics, and evolution of galaxies, from the Milky Way to distant galaxies billions of light-years away. Researchers use a variety of observational techniques, such as telescopes, radio telescopes, and space missions, to study galaxies and understand their formation, interactions, and properties. Galaxy research also plays a key role in our understanding of the universe's large-scale structure, cosmology, and the origins of stars and galaxies.