永井教授、著書『被爆者が眠る島——知られざる原爆体験』（岩波書店、2025年）を出版（電子書籍版も同時刊行）
Prof. Nagai publishes his book, Hibakusha ga Nemuru Shima (Hibakusha’s Memorial Island: An Untold Story of the Atomic Bombing Experience) in Japanese (Iwanami shoten, 2025). An e-book version was also released simultaneously.