In the years after Hubble's discoveries, a significant conflict emerged between two prominent astronomers, Allan Sandage and Gérard de Vaucouleurs. Sandage, who continued Hubble's legacy at Mount Wilson Observatory, held different views regarding the universe's expansion and cosmic measurements compared to de Vaucouleurs, who was rooted in his French upbringing and worked at the University of Texas.
This ongoing rivalry highlighted contrasting perspectives in the field of astronomy, with both astronomers having substantial influence on the understanding of the cosmos, thereby shaping the future of astronomical research and theories about the universe.