{"id":"https://openalex.org/keywords/galaxy-evolution","display_name":"galaxy evolution","description":"The study of how galaxies form and change in structure, composition, and activity over cosmic time.","display_name_alternatives":["galactic evolution","evolution of galaxies","evolution of a galaxy"],"ids":{"openalex":"https://openalex.org/keywords/galaxy-evolution","wikidata":"https://www.wikidata.org/wiki/Q1995140"},"primary_topic":{"id":"https://openalex.org/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","score":0.8844,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","score":0.8844,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":36156,"cited_by_count":627078,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/galaxy-evolution","updated_date":"2026-10-22T04:07:25","created_date":"2026-09-30T00:00:00"}
