galaxy survey

A galaxy survey is a systematic effort to observe and catalog galaxies in the universe. Researchers use powerful telescopes to gather data about various properties of these galaxies, such as their shapes, colors, distances, and movements. By analyzing this information, scientists can learn about the universe's structure, its history, and how galaxies evolve over time. These surveys contribute to our understanding of fundamental questions in cosmology, including the distribution of dark matter and the expansion of the universe. Overall, galaxy surveys play a crucial role in advancing our knowledge of the cosmos.