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Photo of George P. Efstathiou

George P. Efstathiou Physicist

George Efstathiou is particularly interested in the remnant or ‘background’ radiation created at the time of the Big Bang. His work focuses on understanding the slight differences in the temperature of this radiation. He hopes that this study of remnant radiation will eventually answer some of the most profound questions in science, explaining how and why stars and galaxies were formed, and more precisely determining the age and size of our universe.


Hughes Medal, 2015.

Gruber Cosmology Prize, 2011.

Dannie Heineman Prize for Astrophysics, 2005.

Robinson Prize in Cosmology from the University of Newcastle upon Tyne, 1997.

Maxwell Medal, 1990.

Prize of the Institute of Physics, 1990.

Relevant Publications

J. R. Bond et al, "Massive Neutrinos and the Large-Scale Structure of the Universe," Phys. Rev. Lett., vol. 45, no. 24, pp. 1980-1983, Dec.1980..



Associate Fellow Cosmology & Gravity


University of CambridgeInstitute of Astronomy


PhD (Astronomy) Durham University

BA (Physics) Keble College, Oxford


United Kingdom

Ideas Related to George P. Efstathiou

News | Cosmology & Gravity

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The Universe forged its first stars 140 million years later than once thought, the Planck satellite has revealed. Data from...


New image of the early universe refines theories of dark matter

The Planck Space Telescope has presented a new image of the universe in its infancy, at 380,000 years old. The...

Announcement | Cosmology & Gravity

BICEP2 results stir debate

Researchers inside and outside of CIFAR are debating recent results which indicate scientists might have detected the signature of the...

Announcement | Cosmology & Gravity

CIFAR researchers honoured for breakthroughs

CIFAR researchers have earned two of the top 10 spots in Physics World magazine’s list of 2013 breakthroughs, for their...

Announcement | News | Cosmology & Gravity

CIFAR members win prestigious prize in Cosmology

CIFAR is pleased to announce that three of the four winners of this year's Gruber Cosmology Prize are part of the Institute's Cosmology and Gravity program. The CIFAR winners are George Efstathiou, Carlos Frenk, and Simon White.