Martin Rees

The Lord Rees of Ludlow
Official portrait, 2019
60th President of the Royal Society
In office
2005–2010
Preceded byThe Lord May of Oxford
Succeeded byPaul Nurse
78th President of the Royal Astronomical Society
In office
1992–1994
Preceded byKen Pounds
Succeeded byCarole Jordan
39th Master of Trinity College, Cambridge
In office
2004–2012
Preceded byAmartya Sen
Succeeded bySir Gregory Winter
Member of the House of Lords
Lord Temporal
Assumed office
6 September 2005
Life Peerage
Personal details
Born (1942-06-23) 23 June 1942
York, England
Political partyNone (crossbencher)
Spouse(s)
Dame Caroline Humphrey, Lady Rees
(m. 1986)
Websitewww.ast.cam.ac.uk/~mjr/
EducationShrewsbury School
Alma materTrinity College, Cambridge (BA, PhD)
Known forRees–Sciama effect
21-cm cosmology
Coining particle chauvinism
AwardsDannie Heineman Prize for Astrophysics (1984)
Gold Medal of the Royal Astronomical Society (1987)
Balzan Prize (1989)
Bower Award (1998)
Gruber Prize in Cosmology (2001)
Albert Einstein World Award of Science (2003)
Michael Faraday Prize (2004)
Crafoord Prize (2005)
Order of Merit (2007)
Templeton Prize (2011)
Isaac Newton Medal (2012)
Dalton Medal (2012)
HonFREng (2007)
Nierenberg Prize (2015)
Fritz Zwicky Prize (2020)
Copley Medal (2023)
Wolf Prize in Physics (2024)
Scientific career
FieldsAstronomy
Astrophysics
InstitutionsUniversity of Cambridge
University of Sussex
ThesisPhysical processes in radio sources and inter-galactic medium (1967)
Doctoral advisorDennis Sciama
Doctoral students

Martin John Rees, Baron Rees of Ludlow, (born 23 June 1942) is a British cosmologist and astrophysicist. He is the fifteenth Astronomer Royal, appointed in 1995, and was Master of Trinity College, Cambridge, from 2004 to 2012 and President of the Royal Society between 2005 and 2010. He has received various physics awards including the Wolf Prize in Physics in 2024 for fundamental contributions to high-energy astrophysics, galaxies and structure formation, and cosmology.