Stephen Hawking

Stephen Hawking (1942–2018) was a British theoretical physicist whose groundbreaking work on black holes and cosmology transformed modern physics and earned him a place among the greatest scientists of the 20th century. Born in Oxford, England, he showed early mathematical brilliance, studying physics at Oxford University before pursuing graduate work in cosmology at Cambridge University. At age 21, he was diagnosed with amyotrophic lateral sclerosis (ALS), a degenerative motor neuron disease, which progressively paralyzed him over decades. In 1974, while still early in his career, Hawking made a revolutionary discovery: that black holes are not completely black but emit radiation due to quantum effects near the event horizon—a finding now known as Hawking radiation. This discovery reconciled quantum mechanics with general relativity in a way that shocked the physics community. He continued producing groundbreaking work on cosmology, the origins of the universe, and the nature of time despite his severe physical limitations. Using a speech synthesizer after losing his voice, Hawking became a brilliant science communicator, writing A Brief History of Time (1988), which became an international bestseller introducing complex cosmological concepts to general readers. His courage in the face of progressive disability, combined with his scientific genius and wit, made him a cultural icon who transcended academic circles. He held the prestigious Lucasian Professorship of Mathematics at Cambridge University, a position once held by Isaac Newton. His legacy includes not only revolutionary scientific contributions but also inspiration for how humans can overcome adversity.