Stephen William Hawking is a British theoretical physicist and was born on January 8, 1942.
Hawking is the Lucasian Professor of Mathematics at the University of Cambridge, a position once held by Issac Newton. He is known for his contributions to the fields of cosmology and quantum gravity, especially in the context of black holes, and his popular works in which he discusses his own theories and cosmology in general. These include the runaway popular science bestseller A Brief History of Time, which stayed on the British Sunday Times bestseller list for a record-breaking 237 weeks.
His key scientific works to date have included providing, with Roger Penrose, theorems regarding singularities in the framework of general relativity, and the theoretical prediction that black holes should emit radiation, which is today known as Hawking radiation.
Happy Birthday, Stephen!