Robertson-Walker metric References Robertson-Walker metric astronomy Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: astronomy/ Development of the big-bang theory…this metric is called the Robertson-Walker metric. The Robertson-Walker metric and the expansion of the universe (as revealed by the galactic redshifts) were the twin foundations on which much of 20th-century cosmology was constructed. Read More…this metric is called the Robertson-Walker metric. The Robertson-Walker metric and the expansion of the universe (as revealed by the galactic redshifts) were the twin foundations on which much of 20th-century cosmology was constructed. Read More