Galaxy redshift survey

The Galaxy Redshift Survey is a scientific study that maps the positions and distances of galaxies in the universe. By measuring how the light from these galaxies shifts toward the red end of the spectrum—a phenomenon called redshift—astronomers can determine their speeds and how far away they are. This data helps scientists understand the large-scale structure of the universe, how it has expanded over time, and the influence of dark energy. Essentially, it's a detailed cosmic census that reveals how galaxies are distributed and moving in space, providing insights into the universe's evolution.