Issue 21 Editorial.

The Science Museum Group Journal's Issue 21 Editorial discusses a special collection of articles that explore the scientific acquisitions of Professor Stephen Hawking's office at the Science Museum Group and his papers at the University of Cambridge. These acquisitions provide insights into the practices of theoretical physics, academic collaboration, and the realities of living with a degenerative disease while being a celebrity. The articles also highlight the work of curators and archivists in acquiring, cataloging, and understanding museum and archive collections. The issue also includes discussions on curatorship, research, and audience engagement in other areas, such as the interactions of psychiatry and cinema. [Extracted from the article]