Quasar H1821+643: A StudyQuasar H1821+643: A Studyand star formation.Examining H1821+643's influence on gasHigh Energy Astrophysical PhenomenaNew Insights into Quasar H1821+643 and Surrounding GasRecent findings reveal the impact of quasar H1821+643 on nearby hot gas.2025-09-07T01:59:24+00:00 ― 5 min read