Redshift analysis is a fundamental tool in astrophysics that involves studying the shift in the spectral lines of celestial objects towards longer wavelengths, known as redshift, due to the expansion of the universe. By measuring the redshift of galaxies and other distant objects, astronomers can determine their distance, velocity, and age, as well as study the evolution and structure of the universe. Redshift analysis is crucial for understanding the large-scale structure of the universe, the formation and evolution of galaxies, and the nature of dark energy and dark matter.