In this biography
Quick facts
- Born
- 11 May 1924
- Died
- 13 September 2021
- Birthplace
- Fowey, Cornwall, England
- Country
- United Kingdom
- Nationality
- Not independently established
- Known for
- Interplanetary scintillation research and the Cambridge pulsar survey
- Doctorate
- Cambridge, 1952
- Research tool
- Interplanetary scintillation
- Nobel Prize
- Physics, 1974, shared with Martin Ryle
- Professorship
- Radio astronomy, Cambridge, 1971–1989
Why this life matters
His career shows how a planned instrument can enable an unforeseen discovery, while its interpretation and credit depend on several kinds of work.
Timeline
Key moments
Birth
Born on 11 May in Fowey, Cornwall.
Wartime electronics
Worked on radar countermeasure equipment before returning to Cambridge.
Radio astronomy research
Joined Ryle’s team after graduation and obtained a doctorate in 1952.
Survey array
Planned and helped realise the instrument used for the scintillation survey.
Pulsar paper
Published the first report with Bell, Pilkington, Scott and Collins.
Nobel recognition
Shared the physics prize with Ryle.
Death
Died on 13 September, aged ninety-seven.
Electronics shaped the route into astronomy
Hewish was born in Fowey on 11 May 1924 and grew up in Newquay. He entered Gonville and Caius College, Cambridge, in 1942, but wartime work interrupted his studies. Between 1943 and 1946 he worked at the Royal Aircraft Establishment and the Telecommunications Research Establishment on airborne radar countermeasures. This brought experience with antennas and electronics and contact with Martin Ryle. Returning to Cambridge, he graduated in 1948 and joined Ryle’s Cavendish research group. He obtained a PhD in 1952; later honorary doctorates listed in his biography were different qualifications.
Scintillation could become a measuring instrument
Hewish investigated fluctuations in radio signals caused by their propagation through irregular plasma. Rather than treating every fluctuation as a nuisance, he used theory and interferometric observations to study the intervening material. His Nobel lecture credits teacher Jack Ratcliffe and also describes Margaret Clarke’s observation of rapid intensity variations in a few sources. Work with Paul Scott and Roger Collins helped establish the interplanetary scintillation interpretation. These changes could identify very compact radio sources and probe the solar wind. The discovery history therefore includes an earlier observer’s anomaly and subsequent theoretical and instrumental work, rather than one uninterrupted flash of insight.
A telescope built for another question
In 1965 Hewish planned a large array to survey compact radio sources through scintillation. His lecture describes an area of about 18,000 square metres and 2,048 dipoles. Construction drew on the local team, students and supporting staff. Jocelyn Bell joined as a graduate student, helped with the cable network and became responsible for analysing the paper survey charts. Observations began in July 1967. The instrument’s sensitivity, repeated sky coverage and recording system happened to make an unexpected class of source detectable. It was not originally designed around prior knowledge that pulsars existed.
Bell’s signal required several kinds of follow-up
Bell noticed an unusual recurring feature and pursued faster recording, which resolved pulses on 28 November 1967. Hewish investigated possible interference and the regularity of the timing. Pilkington, Scott and Collins contributed independent frequency and receiver tests. Their Nature report names all five authors. Bell’s later account gives particular attention to chart analysis and her identification of further sources; Hewish’s lecture emphasises the instrument and follow-up physics. Reading them together makes the contributions more specific. Neither account should be used to write Bell out of the discovery or to pretend that identifying one unusual chart removed the need for corroboration.
The Nobel citation has a defined scope
Hewish and Ryle shared the 1974 Nobel Prize in Physics. The citation recognises Ryle’s observations and inventions, particularly aperture synthesis, and Hewish’s decisive role in the discovery of pulsars. Ryle was not simply awarded for the identical task as Hewish. Bell was not a recipient, a decision that has prompted enduring debate about scientific credit. The first report’s tentative stellar interpretations also differ from the rotation model discussed in the later lecture. An award biography should keep the original observation, the changing physical explanation and the committee’s later recognition as separate historical events.
Teaching and an extended Cambridge career
Hewish became Director of Studies in Physics at Churchill College in 1961 and held successive university appointments before serving as professor of radio astronomy from 1971 to 1989. He later led the Cambridge radio astronomy group and headed the Mullard Radio Astronomy Observatory from 1982 to 1988. His autobiographical addendum continued discussing solar-wind research and public lectures, showing interests beyond the discovery for which he was best known. Gonville and Caius records his death on 13 September 2021, aged ninety-seven. The institutional career, instrument development and collaborative evidence remain a fuller legacy than an isolated medal entry.
Quick answers
Frequently asked questions about Antony Hewish
- Why was the survey telescope built?
- To study compact radio sources using interplanetary scintillation, before pulsars were known.
- Who shared his Nobel Prize?
- Martin Ryle shared the 1974 physics prize, with a separate citation for his observations and inventions, particularly aperture synthesis.
Keep exploring
Lives connected to this story
- Jocelyn Bell Burnell
Read the observer’s career and first-person account alongside the survey designer’s retrospective explanation.
- Ernest Rutherford
Compare an earlier Cambridge experimental research career in a different field, without implying shared authorship or collaboration.
Sources and further reading
Explore the evidence
These references support the biography and offer further reading. Official records, first-person accounts and independent reporting provide different perspectives; image records document attribution and licensing.
- 1. Nobel FoundationAntony Hewish: autobiographical account and later addendum
This autobiographical account includes a later addendum referring to 1992. Its then-current research and appointments are historical statements, not a present-day institutional status.
- 2. Gonville & Caius College, CambridgeProfessor Antony Hewish (1924–2021), 16 September 2021
- 3. Antony Hewish; Nobel FoundationPulsars and High Density Physics, Nobel Lecture, 12 December 1974
Selected discovery passages of the acquired lecture were read; the later high-density-physics review is not treated as a current astronomical model.
- 4. Hewish and colleagues; Pennsylvania State University course-hosted copyOriginal 1968 Nature article scan, with later contributor cover sheet
Selected pages of the original paper were visually inspected. Its printed receipt date is 9 February 1968; a later lecture describes submission on 8 February. These are distinct documentary statements.
- 5. University of Cambridge; interview by Louise WalshJourneys of discovery: Jocelyn Bell Burnell and pulsars
- 6. S. Jocelyn Bell Burnell; Cosmic Search, reproduced by NRAOLittle Green Men, White Dwarfs or Pulsars? Retrospective account
- 7. Nobel FoundationThe Nobel Prize in Physics 1974: recipients and citation
