Stephen Hawking's work had a profound impact on the study of black holes and theoretical physics. His groundbreaking research, particularly the concept of Hawking radiation, challenged existing notions about black holes, suggesting they could emit radiation and gradually evaporate. This revolutionary idea bridged the gap between quantum mechanics and general relativity, shaping the way scientists understand the universe. His best-selling book, "A Brief History of Time," brought complex scientific theories to the public, encouraging a wider appreciation for cosmology and inspiring countless individuals to explore the depths of space and time.