Title: Scientific celebrity
Content:  20th century and early 21st century, cosmologist Stephen Hawking achieved celebrity status. This was initially through his research publications on black holes and other aspects of cosmology. In 1988, he published "A Brief History of Time", which was a book that provided insight into cosmology for the general public. Hawking's celebrity status grew rapidly, and his involvement in popular culture was perpetuated through television and radio appearances, biographical books, and being the subject of a movie, "The Theory of Everything". At times, Hawking suffered from public scrutiny of his private life. Lists of notable English language popularizers of science and of science communicators are available.
Title: Stephen Hawking
Content:  Hawking returned to Cambridge in 1975 to a more academically senior post, as reader in gravitational physics. The mid-to-late 1970s were a period of growing public interest in black holes and the physicists who were studying them. Hawking was regularly interviewed for print and television. He also received increasing academic recognition of his work. In 1975, he was awarded both the Eddington Medal and the Pius XI Gold Medal, and in 1976 the Dannie Heineman Prize, the Maxwell Medal and Prize and the Hughes Medal. He was appointed a professor with a chair in gravitational physics in 1977. The following year he received the Albert 
Title: Stephen Hawking
Content:  of relativity and quantum mechanics. He was a vigorous supporter of the many-worlds interpretation of quantum mechanics. Hawking achieved commercial success with several works of popular science in which he discussed his theories and cosmology in general. His book A Brief History of Time appeared on the Sunday Times bestseller list for a record-breaking 237 weeks. Hawking was a Fellow of the Royal Society, a lifetime member of the Pontifical Academy of Sciences, and a recipient of the Presidential Medal of Freedom, the highest civilian award in the United States. In 2002, Hawking was ranked number 25 in the BBC's poll of the 100 Greatest Britons. He died on 14 March 2018 at the age of 76, after living with motor neurone disease for more than 50 years.
Title: Stephen Hawking
Content:  with an early-onset slow-progressing form of motor neurone disease (amyotrophic lateral sclerosis – ALS, for short) that gradually, over the decades, paralysed him. After the loss of his speech, he communicated through a speech-generating device initially through use of a handheld switch, and eventually by using a single cheek muscle. Hawking's scientific works included a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity, and the theoretical prediction that black holes emit radiation, often called Hawking radiation. Initially, Hawking radiation was controversial. By the late 1970s and following the publication of further research, the discovery was widely accepted as a major breakthrough in theoretical physics. Hawking was the first to set out a theory of cosmology explained by a union of the general 
Title: Stephen Hawking
Content:  and enjoyed partying and dancing into the small hours. A difficulty refusing the invitations and visitors left him limited time for work and his students. Some colleagues were resentful of the attention Hawking received, feeling it was due to his disability. He received further academic recognition, including five more honorary degrees, the Gold Medal of the Royal Astronomical Society (1985), the Paul Dirac Medal (1987) and, jointly with Penrose, the prestigious Wolf Prize (1988). In the 1989 Birthday Honours, he was appointed a Companion of Honour (CH). He reportedly declined a knighthood in the late 1990s in objection to the UK's science funding policy.
Title: Stephen Hawking
Content:  Stephen William Hawking (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who, at the time of his death, was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. Between 1979 and 2009 he was the Lucasian Professor of Mathematics at the University of Cambridge. Hawking was born in Oxford, into a family of physicians. In October 1959, at the age of 17, he began his university education at University College, Oxford, where he received a first-class BA degree in physics. In October 1962 he began his graduate work at Trinity Hall, Cambridge, where in March 1966 he obtained his PhD degree in applied mathematics and theoretical physics, specialising in general relativity and cosmology. In 1963 Hawking was 
Title: Stephen Hawking
Content:  Medal and an honorary doctorate from the University of Oxford. In 1979, Hawking was elected Lucasian Professor of Mathematics at the University of Cambridge. His inaugural lecture in this role was titled: "Is the End in Sight for Theoretical Physics?" and proposed N=8 Supergravity as the leading theory to solve many of the outstanding problems physicists were studying. His promotion coincided with a health-crisis which led to his accepting, albeit reluctantly, some nursing services at home. At the same time, he was also making a transition in his approach to physics, becoming more intuitive and speculative rather than insisting on mathematical proofs. "I would rather 
Title: Stephen Hawking
Content:  Despite suggestions that he might leave the United Kingdom as a protest against public funding cuts to basic scientific research, Hawking worked as director of research at the Cambridge University Department of Applied Mathematics and Theoretical Physics. On 28 June 2009, as a tongue-in-cheek test of his 1992 conjecture that travel into the past is effectively impossible, Hawking held a party open to all, complete with hors d'oeuvres and iced champagne, but publicised the party only after it was over so that only time-travellers would know to attend; as expected, nobody showed up to the party. On 20 July 2015, Hawking 
Title: Stephen Hawking
Content:  and said that Higgs should win the Nobel Prize for Physics, which he did in 2013.  In 2007, Hawking and his daughter Lucy published George's Secret Key to the Universe, a children's book designed to explain theoretical physics in an accessible fashion and featuring characters similar to those in the Hawking family. The book was followed by sequels in 2009, 2011, 2014 and 2016. In 2002, following a UK-wide vote, the BBC included Hawking in their list of the 100 Greatest Britons. He was awarded the Copley Medal from the Royal Society (2006), the Presidential Medal of Freedom, which is America's 
Title: Stephen Hawking
Content:  expectancy of two years. In the late 1960s, Hawking's physical abilities declined: he began to use crutches and could no longer give lectures regularly. As he slowly lost the ability to write, he developed compensatory visual methods, including seeing equations in terms of geometry. The physicist Werner Israel later compared the achievements to Mozart composing an entire symphony in his head. Hawking was fiercely independent and unwilling to accept help or make concessions for his disabilities. He preferred to be regarded as "a scientist first, popular science writer second, and, in all the ways that matter, a normal human being with the same desires, drives, dreams, and 

Question: what did stephen hawking become famous for?
Answer: Author.