In the 21st century, the label of the "Atomic Age" connotes either a sense of nostalgia or naïveté, and is considered by many to have ended with the fall of the Soviet Union in 1991, though the term continues to be used by many historians to describe the era following the conclusion of the Second World War.
在21世纪，“核子年代”的标签所意味着怀旧的感觉或天真，并被许多人认为结束于1991年前苏联的秋天，虽然这个术语继续被许多历史学家来描述第二次世界大战结束后的时代。