Stephen Hawking was a renowned theoretical physicist and cosmologist, best known for his work on black holes and the nature of the universe. Despite being diagnosed with a rare form of motor neurone disease at a young age, he made groundbreaking contributions to science, including the famous theory that black holes emit radiation, now known as Hawking radiation. Hawking authored several popular science books, including A Brief History of Time, which brought complex scientific concepts to the general public. His life and work have inspired countless individuals, showcasing the power of human intellect and perseverance in the face of adversity.