The structure of the universe is organized on various scales, from small to large. At the smallest scale, we find galaxies, which are massive systems of stars, gas, and dust held together by gravity. These galaxies can be grouped into clusters, which are collections of galaxies that are bound together. On a larger scale, galaxy clusters form superclusters, which are among the largest known structures in the universe. Between these superclusters, vast voids exist, creating a web-like structure known as the cosmic web. This intricate arrangement helps scientists understand the distribution of matter and the evolution of the universe over time.