Stephen Hawking was a theoretical physicist, cosmologist, and author.

Hawking became interested in mathematics at an early age. His father wanted him to major in medicine, but he preferred to study more precise concepts.

He went to Oxford University, which did not offer a major in mathematics, so he decided to study physics instead.

He was also director of the Centre for Theoretical Cosmology at the University of Cambridge.

Hawking is one of the most famous cosmologists in history. His work has influenced the way we view our universe.

Hawking is known for his groundbreaking work on radiation theory.

Stephen Hawking's fascination with black holes led him to study the phenomenon himself.

He later focused his research on cosmology and general relativity, which is the study of the structure of the universe.

His research earned him the title of fellow of the Royal Society at age 32. He was also awarded the Albert Einstein Award.

In 1979, Hawking was elected as the Lucasian Professor of Mathematics at Cambridge University, a post that was previously held by Isaac Newton.

He quickly became famous and became a household name through his groundbreaking theories and research.

Hawking is also a bestselling author, and his book A Brief History of Time is one of his most popular works.

Aside from his work in the field of cosmology, Hawking was also an accomplished lecturer.

Using an adaptive communication system and a speech synthesizer, Hawking produced books, scientific papers, and lectures despite his limited ability to communicate.

Hawking began to experience health problems while completing his PhD at Cambridge University.

He began to slur his speech and fell over frequently. This led his family to become concerned about him and he was admitted to hospital for two weeks of tests.

Hawking was eventually diagnosed with ALS, otherwise known as Lou Gehrig's disease.

Hawking died on March 14, 2018 at the age of 76 years.