He was an English theoretical physicist, cosmologist, and author.
He is the author of the best selling book, "A Brief History of Time".
Hawkings redefined cosmology by proposing that black holes emit radiation and later evaporate.
Hawking was diagnosed with an early-onset slow-progressing form of motor neuron disease (amyotrophic lateral sclerosis "ALS" or Lou Gehrig's disease) that gradually paralyzed him over the decades.
Stephen Hawking, the British Physicist, and the black hole theorist died on 14th March.