QUICK FACTS
Created Jan 0001
Status Verified Sarcastic
Type Existential Dread
Keywords
paul davies (disambiguation), london, university college london, fulling–davies–unruh effect, bunch–davies vacuum state, templeton prize, kelvin medal, faraday prize, klumpke-roberts award

Paul Davies

“For others named Paul Davies, see Paul Davies...”

Contents
  • 1. Overview
  • 2. Etymology
  • 3. Cultural Impact

For others named Paul Davies, see Paul Davies (disambiguation) .

Paul Davies AM

Davies in 2016 Born Paul Charles William Davies (1946-04-22) 22 April 1946 (age 79) London , United Kingdom Alma mater University College London Known for Fulling–Davies–Unruh effect Bunch–Davies vacuum state Davies-Fulling “moving mirror” model [3] Awards

Paul Charles William Davies AM (born 22 April 1946) is an English physicist , a prolific writer, and a seasoned broadcaster , whose career has spanned multiple continents and disciplines. Currently, he holds a distinguished professorship at Arizona State University , where he also directs BEYOND: Center for Fundamental Concepts in Science—a rather ambitious title, even by academic standards, implying a pursuit of knowledge beyond the mere trivial. Additionally, he maintains an affiliation with the Institute for Quantum Studies, nestled within Chapman University in California, further expanding his geographical and intellectual reach.

Prior to his current roles, Davies accumulated a rather extensive list of academic appointments, indicating a man perpetually in motion or perhaps just unwilling to settle. His institutional history includes stints at the prestigious University of Cambridge , his alma mater University College London , King’s College London , University of Newcastle upon Tyne , the University of Adelaide in Australia, and Macquarie University , also in Australia. His research interests are as broad as his academic migrations, primarily focusing on the grand narratives of the universe: cosmology —the study of the universe’s origin and evolution, quantum field theory —the rather perplexing framework for understanding fundamental particles and forces, and astrobiology —the search for life beyond Earth, a pursuit that often seems to reveal more about humanity’s loneliness than alien civilizations.

In 2005, Davies was entrusted with the rather significant, if somewhat speculative, role of chairing the SETI : Post-Detection Science and Technology Taskgroup of the International Academy of Astronautics . One can only imagine the planning involved in preparing for an event that, despite decades of searching, remains stubbornly hypothetical. He also serves on the Advisory Council of METI (Messaging Extraterrestrial Intelligence) , which, for some, is akin to yelling into a void and hoping someone, or something, yells back.

A notable, albeit controversial, moment in his career came in 2011 when he co-authored a Science article alongside Felisa Wolfe-Simon titled “A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus.” This paper, which initially garnered significant media attention for its audacious claims about an alternative biochemistry, was eventually retracted [5], a rather definitive statement on the robustness of its findings. It seems even the universe sometimes prefers its chemistry to be conventional.

Education

Born on 22 April 1946, Paul Charles William Davies spent his formative years in Finchley , a district nestled within the sprawling metropolis of London , United Kingdom. His early academic journey led him to Woodhouse Grammar School , a stepping stone that prepared him for higher education. He subsequently pursued his passion for physics at University College London , a venerable institution where he distinguished himself by earning a Bachelor of Science degree with first-class honours in 1967. This early success set the stage for a career dedicated to unraveling the universe’s most intricate secrets.

His academic progression continued, culminating in 1970 with the completion of his PhD at the very same University College London . His doctoral research, a comprehensive endeavor, was conducted under the joint supervision of two prominent figures in their respective fields: Michael J. Seaton and Sigurd Zienau [2] [1]. Following the successful defense of his thesis, Davies embarked on postdoctoral research , a critical phase for young scientists to deepen their expertise and broaden their horizons. This period saw him working under the tutelage of the renowned astrophysicist Fred Hoyle at the illustrious University of Cambridge , further solidifying his foundation in theoretical physics and cosmology.

Scientific research

Davies’s primary research interests, a rather ambitious trifecta, encompass theoretical physics , the grand sweep of cosmology , and the perpetually optimistic field of astrobiology . His most substantial contributions have largely been concentrated in the intricate domain of quantum field theory in curved spacetime . This particular branch of physics attempts to reconcile the seemingly disparate realms of quantum mechanics and general relativity , exploring how quantum fields behave in the presence of strong gravitational fields, such as those near black holes or in the early universe. It’s the kind of work that makes lesser minds simply lie down.

Among his most notable theoretical contributions is the concept known as the Fulling–Davies–Unruh effect [6]. This counter-intuitive prediction posits that an observer undergoing constant acceleration through what appears to be empty space will, in fact, perceive a bath of induced thermal radiation . In essence, acceleration itself creates a thermal environment, a rather elegant demonstration that “empty space” is rarely as empty as it seems. It implies that the very act of observing can alter reality, a notion that continues to perturb those who prefer their universe to be neatly objective. Another significant contribution is the Bunch–Davies vacuum state , a theoretical construct frequently employed as the foundational state for explaining the subtle fluctuations observed in the cosmic microwave background (CMB). These tiny temperature variations in the ancient radiation left over from the Big Bang are crucial for understanding the large-scale structure of the universe, offering clues to the universe’s earliest moments, when it was still figuring itself out.

In a seminal paper co-authored with Stephen Fulling and William Unruh , Davies was among the first to propose that black holes undergoing evaporation via the Hawking effect —the emission of radiation from a black hole’s event horizon—actually lose mass due to a flux of negative energy streaming into the hole from the surrounding spacetime. This mechanism offers a clearer picture of how black holes, those cosmic vacuum cleaners, might eventually fade away, albeit over timescales that make human existence seem like a fleeting thought.

Davies has also maintained a longstanding fascination with the enigmatic problem of time’s arrow . This fundamental question probes why time appears to flow in only one direction, from past to future, despite the underlying physical laws being largely time-symmetric. It’s a mystery that continues to vex physicists and philosophers alike, perhaps because humans are simply too linear in their perception. Furthermore, he has been instrumental in identifying the perplexing mystery of ‘dark energy ’ as one of the most critical unresolved issues confronting fundamental science. Dark energy, the mysterious force accelerating the expansion of the universe, represents a profound gap in our understanding of cosmic dynamics, an inconvenient truth that suggests much of the universe remains utterly beyond our current comprehension. [7]

Beyond the purely theoretical, Davies has also been an early and vocal proponent of the intriguing theory of panspermia , specifically suggesting that life on Earth may have originated from Mars . This hypothesis posits that microbial life could have journeyed from the Red Planet to Earth, cocooned safely within rocks ejected into space by powerful asteroid and comet impacts. He is also a fervent advocate for advancing scientific research and technological development aimed at preventing future comet impacts that could threaten the continued development or even the very existence of humankind [8]. In a move that some might consider either visionary or utterly desperate, he has even proposed that a one-way trip to Mars could emerge as a viable option for humanity’s future, presumably for those who prefer permanent relocation to a barren, hostile world. During his tenure in Australia, he played a pivotal role in the establishment of the Australian Centre for Astrobiology, cementing his commitment to the search for extraterrestrial life and understanding life’s origins.

In 2011, Davies found himself embroiled in significant scientific controversy as a co-author of the aforementioned Science article, “A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus” [4]. The paper sensationally claimed that the bacterium GFAJ-1 , isolated from Mono Lake, California, could incorporate arsenic into its DNA in place of phosphorus, a fundamental building block of all known life. This would have represented a revolutionary discovery, fundamentally altering our understanding of biochemistry. However, the scientific community, ever the skeptical bunch, quickly raised serious doubts. Reports rigorously refuting the most significant and transformative aspects of the original results were subsequently published in the same journal in 2012 [9]. Following the publication of these challenging articles, the scientific watchdog website Retraction Watch argued vehemently that the original article warranted retraction due to what it termed “misrepresentation of critical data” [10] [11]. Ultimately, the article was indeed retracted [5], a rare and rather stark conclusion to a highly publicized scientific claim.

Davies also contributes to the more applied, though equally complex, realm of research as an outreach investigator at Arizona State University ’s Center for Convergence of Physical Science and Cancer Biology. This initiative forms part of a broader program established by the National Institutes of Health ’s National Cancer Institute , specifically designed to integrate the expertise of physicists into the challenging field of cancer research . This program has successfully cultivated a network of 12 Physical Sciences-Oncology Centers [12], demonstrating a concerted effort to tackle one of humanity’s most persistent scourges by bringing together diverse scientific perspectives.

Awards

Davies’s extensive contributions to science and public understanding have not gone unnoticed, accruing a rather impressive array of accolades. In 1995, he was awarded the prestigious Templeton Prize [13], an award that often raises eyebrows in the scientific community given its focus on “progress toward research or discoveries about spiritual realities.” One might wonder if the universe truly needs human validation of its spiritual dimensions, but nonetheless, it’s a significant sum of money.

His talents as a communicator of complex scientific ideas were recognized in 1999 when he was elected a Fellow of the Royal Society of Literature [14], an unusual honor for a physicist, speaking to his ability to craft compelling narratives from the cold hard facts of the cosmos. In Australia , where he spent a significant portion of his career, his outreach efforts were celebrated with an Advance Australia Award and two coveted Eureka Prizes . The United Kingdom also acknowledged his prowess, bestowing upon him the 2001 Kelvin Medal and Prize from the Institute of Physics , followed by the distinguished 2002 Faraday Prize from The Royal Society , both recognizing his exceptional ability to popularize science. Further cementing his contributions, Davies was appointed a member of the Order of Australia in the 2007 Queen’s birthday honours list, a national recognition of his impact. As a final, rather cosmic, touch, the minor planet 6870 Pauldavies bears his name [15], ensuring his legacy is literally etched into the fabric of the solar system, a rather more permanent tribute than most.

Media work

Paul Davies has carved out a significant niche in public discourse, not merely as a scientist but as a compelling voice that writes and comments extensively on a broad spectrum of scientific and philosophical issues. His ability to translate the arcane into the accessible has led to a prolific media career. He produced a thought-provoking documentary series for BBC Radio 3 , a testament to his capacity for deep intellectual engagement. In Australia, he hosted two television series, The Big Questions and More Big Questions, which aimed to demystify complex scientific concepts for a broader audience. His BBC documentary, The Cradle of Life, further showcased his ability to engage viewers, exploring themes central to his Faraday Prize lecture. He is a regular contributor to newspapers and magazines across the globe, ensuring his perspectives reach a wide international readership. Additionally, he has made appearances on numerous radio and television programs, including the children’s podcast programme Ask A Biologist , demonstrating a willingness to engage with audiences of all ages, no matter how tiresome.

A particularly notable piece, an opinion essay titled “Taking Science on Faith,” published in The New York Times on 24 November 2007 [16], ignited a considerable controversy. In this article, Davies boldly explored the often-unacknowledged role of faith within scientific inquiry. He contended that the fundamental faith scientists hold in the immutable nature of physical laws has deep historical roots, originating, perhaps surprisingly to some, in Christian theology . His provocative claim that the assertion of science being “free of faith” is “manifestly bogus” [16] struck a nerve, particularly among those who champion a strict separation between scientific methodology and religious belief.

The fallout was immediate and robust. Edge.org , an intellectual online forum, promptly presented a comprehensive criticism of Davies’s article. This critique featured contributions from a formidable lineup of prominent scientists and thinkers, including Jerry Coyne , Nathan Myhrvold , Lawrence Krauss , Scott Atran , Sean Carroll , Jeremy Bernstein , PZ Myers , Lee Smolin , John Horgan , and Alan Sokal . Davies, in his response, expressed dismay, stating, “I was dismayed at how many of my detractors completely misunderstood what I had written. Indeed, their responses bore the hallmarks of a superficial knee-jerk reaction to the sight of the words ‘science’ and ‘faith’ juxtaposed” [17]. This exchange highlighted the deeply entrenched divisions and sensitivities surrounding the discourse on science and religion . While staunch atheists like Richard Dawkins [18] and Victor J. Stenger [19] have consistently criticized Davies’s public stance on these matters, other commentators, including the John Templeton Foundation [20], have lauded his efforts to bridge these intellectual divides [21] [22]. It seems the universe itself isn’t quite ready to pick a side.

Davies again found himself in the media spotlight when he penned an article for The Wall Street Journal describing the background to the highly anticipated December 2010 arsenic bacteria press conference [23]. In a statement that perhaps revealed too much, he declared his support for Felisa Wolfe-Simon ’s controversial finding that arsenic could replace phosphorus, explaining, “I had the advantage of being unencumbered by knowledge. I dropped chemistry at the age of 16, and all I knew about arsenic came from Agatha Christie novels” [23]. While disarming, such a sentiment from a co-author on a Science paper on a groundbreaking biological discovery is, shall we say, unconventional. He further speculated with considerable enthusiasm, “Well, I would be astonished if this was the only arsenic-based organism on Earth and Felisa just happened to scrape it up from the bottom of Mono Lake on the first try, It’s quite clear that it is the tip of an iceberg. I think it’s a window into a whole new world of microbiology. And as a matter of fact, she already has 20 or so candidate other organisms that we’re very anxious to take a look at. I think we’re going to see a whole new domain of life here” [24]. This rather grand pronouncement, however, quickly unraveled. It was later independently and definitively demonstrated that the organism’s DNA contained no arsenic whatsoever [25] [26] [27] [28]. The “whole new domain of life” turned out to be a mirage. Consequently, concerns were justifiably raised regarding his responsibility as one of Wolfe-Simon’s co-authors [29], highlighting the critical importance of rigorous scientific due diligence, even when the potential discovery is tantalizingly exciting.

Paul Davies’s distinctive blend of scientific inquiry and philosophical contemplation has, perhaps unexpectedly, permeated various facets of popular culture, a testament to his ability to spark public imagination.

  • The 1996 novel Naive, Super , penned by the Norwegian writer Erlend Loe (and later translated by Tor Ketil Solberg), notably features frequent references to Davies. The novel, known for its quirky humor and existential musings, seemingly found a kindred spirit in Davies’s explorations of fundamental questions, weaving his ideas into its narrative fabric.
  • The American crime drama television series Numbers, in its fifth season, episode 12, explicitly mentions Paul Davies’s “Cosmic Think Tank” at Arizona State University . This reference underscores his prominent role in contemporary scientific thought and the public’s perception of his work on grand cosmic puzzles.
  • In Lawrence Leung’s Unbelievable , specifically season 1, episode 3, Australian comedian Lawrence Leung conducts an interview with Paul Davies concerning the phenomenon of alien abduction . During this segment, Davies candidly discusses his own experiences with sleep paralysis , offering a scientific perspective on a phenomenon often misinterpreted as supernatural encounters.
  • Davies has also made multiple appearances on the popular science documentary series Through the Wormhole , hosted by Morgan Freeman. He was featured in season 3, episode 1, entitled “Will We Survive First Contact? ,” where he undoubtedly offered his characteristic insights into the implications of encountering extraterrestrial intelligence. He also returned for season 6 of the series, continuing his role as a commentator on humanity’s biggest cosmic questions.
  • The 2013 novel The Extinction Machine, authored by American writer Jonathan Maberry , also includes references to Paul Davies. This inclusion suggests that Davies’s work on existential threats and the future of humanity resonates deeply enough to be incorporated into fictional narratives exploring apocalyptic themes.

Works

Davies’s literary output is as extensive as his academic career, encompassing both accessible popular science books and rigorous technical texts. His ability to communicate complex ideas to a broad audience has solidified his reputation as a leading science popularizer.

  • 1974 The Physics of Time Asymmetry, University of California Press, Berkeley, California, ISBN 0-520-03247-0. A foundational work exploring the unidirectional flow of time.
  • 1978 The Runaway Universe, Penguin Books, ISBN 0-460-04286-6. A contemplation on the ultimate fate of the cosmos, a rather cheerful topic.
  • 1979 Stardoom, HarperCollins Publishers Ltd, ISBN 0-00-635318-5. Another optimistic title, presumably about the less pleasant aspects of stellar evolution.
  • 1979 The Forces of Nature, Cambridge University Press, ISBN 0-521-31392-9. An exploration of the fundamental interactions that govern the universe.
  • 1980 Other Worlds, Touchstone/Simon and Schuster, ISBN 0-460-04400-1. Delving into concepts like parallel universes and the nature of reality beyond our immediate perception.
  • 1980 The Search for Gravity Waves, Cambridge University Press, ISBN 0-521-23197-3. A prescient look at the quest for gravitational waves, long before their direct detection.
  • 1981 The Edge of Infinity, Penguin USA, ISBN 0-14-023194-3. Pondering the boundaries of the universe and the limits of human understanding.
  • 1982 The Accidental Universe, Cambridge University Press, ISBN 0-521-28692-1. Investigating the fine-tuning of cosmic constants and the anthropic principle.
  • 1982 Quantum Fields in Curved Space, (with N.D. Birrell), Cambridge University Press, ISBN 0-521-27858-9. A more technical, though still influential, text on a complex subject.
  • 1983 God and the New Physics , Simon & Schuster, ISBN 0-14-022550-1. A provocative examination of the intersection between modern physics and theological concepts, a topic he would revisit throughout his career.
  • 1984 Superforce, Touchstone, ISBN 0-04-539006-1. Exploring grand unified theories and the possibility of a single underlying force governing all interactions.
  • 1986 The Ghost in the Atom, Cambridge University Press, ISBN 0-521-31316-3. A foray into the perplexing interpretations of quantum mechanics, where reality often defies common sense.
  • 1987 The Cosmic Blueprint, Simon & Schuster, ISBN 0-04-440182-5. Discussing the apparent order and complexity of the universe and the emergence of structure.
  • 1988 Superstrings: A Theory of Everything, Cambridge University Press, ISBN 0-521-35741-1. An early popularization of string theory, the ambitious attempt to unify all fundamental forces.
  • 1989 The New Physics, Cambridge University Press, ISBN 0-521-30420-2. A comprehensive overview of the paradigm shifts occurring in physics at the time.
  • 1991 The Matter Myth, Simon & Schuster, ISBN 0-670-83585-4. Challenging conventional notions of matter and reality in light of quantum physics.
  • 1992 The Mind of God , Simon & Schuster UK, ISBN 0-671-71069-9. Another deep dive into the philosophical implications of physics, particularly concerning the existence of a cosmic designer or underlying intelligence.
  • 1994 The Last Three Minutes, Basic Books, ISBN 1-85799-336-5. A grim, yet fascinating, look at the ultimate end scenarios for the universe.
  • 1995 Are We Alone?, Basic Books, ISBN 0-14-025179-0. Addressing the profound question of extraterrestrial life and humanity’s place in the cosmos.
  • 1995 About Time: Einstein’s Unfinished Revolution , Penguin Books, Simon & Schuster, ISBN 0-670-84761-5. Exploring the nature of time and the lingering mysteries left by Einstein’s theories.
  • 1998 The Fifth Miracle: The Search for the Origin and Meaning of Life. New York: Simon and Schuster. ISBN 0-684-83799-4. A deep investigation into the genesis of life, a topic close to his astrobiological interests.
  • 2002 How to Build a Time Machine , Penguin Books, ISBN 0-14-100534-3. A speculative, yet scientifically grounded, look at the possibility of time travel, a concept that perpetually fascinates.
  • 2003 The Origin of Life, Penguin Books, ISBN 0-14-101302-8. Further exploring the complex processes that led to life on Earth.
  • 2007 The Goldilocks Enigma, also under the title Cosmic Jackpot , Houghton Mifflin Harcourt, ISBN 0-14-102326-0. Revisiting the fine-tuning argument and the conditions necessary for life in the universe.
  • 2008 Quantum Aspects of Life (eds. Derek Abbott , Paul C. W. Davies, and Arun K. Pati , with foreword by Sir Roger Penrose ), Imperial College Press, ISBN 1-84816-267-7. A collection exploring the controversial but intriguing field of quantum biology.
  • 2010 The Eerie Silence , Houghton Mifflin Harcourt, ISBN 1-4001-6551-2. A reflection on the Fermi paradox and the persistent lack of observable extraterrestrial intelligence, a silence that often speaks volumes.
  • 2010 Information and the Nature of Reality: From Physics to Metaphysics, Cambridge University Press, ISBN 978-0-521-76225-0. Exploring the fundamental role of information in the universe, bridging the gap between scientific and philosophical inquiry.
  • 2019 The Demon in the Machine, Allen Lane, ISBN 978-0241309599. A more recent work, likely addressing the intersection of information, complexity, and the origins of life.
  • 2021 What’s Eating The Universe? (And Other Cosmic Questions), Allen Lane, ISBN 978-0-241-45985-0. A collection of essays tackling some of the most pressing and perplexing questions in cosmology.
  • 2025 Quantum 2.0: The Past, Present, and Future of Quantum Physics, Pelican, ISBN 978-0-241-65580-1. A forward-looking examination of the ongoing quantum revolution, a field that refuses to stay put.

Technical books

  • 1974 The Physics of Time Asymmetry, University of California Press, Berkeley California. This is presumably a more rigorous, academic version of his popular science book on the same subject.
  • 1982 (with N. D. Birrell) Quantum Fields in Curved Space, Series: Cambridge Monographs on Mathematical Physics, Cambridge University Press [30]. A highly regarded textbook for advanced students and researchers in quantum field theory and general relativity.
  • 1984 Quantum Mechanics, (with David S. Betts), 2nd edition, CRC Press, 1994. A standard textbook on the principles and applications of quantum mechanics.

Essays and papers

  • “Are We Alone in the Universe?” in The New York Times , 18 November 2013. A concise summary of his perspective on the search for extraterrestrial life, likely distilling themes from The Eerie Silence.
  • “Taking Science on Faith” in The New York Times , 24 November 2007 [16]. The controversial essay that sparked extensive debate on the role of faith in scientific endeavor.
  • “What Happened Before the Big Bang?” in God for the 21st Century, Russell Stannard ed., Templeton Foundation Press , 2000, ISBN 1-890151-39-4. An essay grappling with the ultimate beginning, or lack thereof, of the universe.
  • Davies, P.C.W. (2012). “Footprints of alien technology”. Acta Astronautica. 73: 250–257. Bibcode :2012AcAau..73..250D. doi :10.1016/j.actaastro.2011.06.022. A paper exploring the possibility of detecting technological signatures of extraterrestrial civilizations.