Stephen Hawking was one of the most brilliant theoretical physicists in history, known for his work on black holes and relativity despite living most of his life with ALS.
Stephen William Hawking (January 8, 1942 – March 14, 2018) was a British theoretical physicist, cosmologist, and author, widely regarded as one of the greatest scientific minds of the 20th–21st centuries. He made groundbreaking contributions to black hole physics, cosmology, and general relativity. Despite being diagnosed with ALS (motor neuron disease) at 21, he lived an extraordinarily productive life for over 55 more years, communicating via a speech synthesizer and writing bestsellers like A Brief History of Time.