CINXE.COM

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Award ceremony speech" data-related="1" > The Nobel Prize in Physics 2019 - Award ceremony speech </a> </li> </ol> </noscript> <div id="pjax-well" class="container page-content-area"> <div class="pjax-container"> <section class="page-section biographical"> <aside class="page-aside border-top"> <header class="header"> <h5 class="heading"> <a href="https://www.nobelprize.org/prizes/physics/2019/summary/"> The Nobel Prize in Physics 2019 </a> </h5> </header> <nav class="aside-navigation aside-navigation--desktop" aria-label="In Page Navigation"> <ul class="aside-navigation__list"><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/summary/" aria-current="false" > Summary </a> </li><li class="aside-navigation__list-item">Laureates<ul class="aside-navigation__list"><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/peebles/facts/" aria-current="false" > James Peebles </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/mayor/facts/" aria-current="false" > Michel Mayor </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/queloz/facts/" aria-current="false" > Didier Queloz </a> </li></ul></li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/prize-announcement/" aria-current="false" > Prize announcement </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/press-release/" aria-current="page" > Press release </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/popular-information/" aria-current="false" > Popular information </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/advanced-information/" aria-current="false" > Advanced information </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/award-video/" aria-current="false" > Award ceremony video </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/2019/ceremony-speech/" aria-current="false" > Award ceremony speech </a> </li></ul></nav> <footer class="footer"> <div class="share-this"> <h6 class="heading"> Share this </h6> <ul class="socialicons" aria-label="Social sharing links"> <li class="socialicon" data-social="facebook"> <a href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.nobelprize.org%2Fprizes%2Fphysics%2F2019%2Fpress-release%2F&t=Press+release" data-target="https://www.nobelprize.org/prizes/physics/2019/press-release/" target="_blank" rel="noreferrer" > <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path d="M14.526 34h-3.96A4.572 4.572 0 0 1 6 29.43V10.57C6 8.051 8.051 6 10.571 6H29.43A4.577 4.577 0 0 1 34 10.57v18.854c0 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value="https://www.nobelprize.org/prizes/physics/2019/mayor/facts/">- Michel Mayor</option><option value="https://www.nobelprize.org/prizes/physics/2019/queloz/facts/">- Didier Queloz</option></optgroup><option value="https://www.nobelprize.org/prizes/physics/2019/prize-announcement/"> Prize announcement</option><option value="https://www.nobelprize.org/prizes/physics/2019/press-release/" disabled selected> Press release</option><option value="https://www.nobelprize.org/prizes/physics/2019/popular-information/"> Popular information</option><option value="https://www.nobelprize.org/prizes/physics/2019/advanced-information/"> Advanced information</option><option value="https://www.nobelprize.org/prizes/physics/2019/award-video/"> Award ceremony video</option><option value="https://www.nobelprize.org/prizes/physics/2019/ceremony-speech/"> Award ceremony speech</option></select> <h5><b>English</b><br /> <a href="https://www.nobelprize.org/uploads/2019/10/press-physics2019.pdf" target="_blank" rel="noopener">English (pdf)</a><br /> <a href="https://www.nobelprize.org/prizes/physics/2019/61693-press-release-swedish/">Swedish</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/press-physics2019-swedish.pdf" target="_blank" rel="noopener">Swedish (pdf)</a></h5> <p><img decoding="async" class="alignnone wp-image-7288 size-full" src="https://www.nobelprize.org/uploads/2018/06/kva_logo_09-25.gif" alt="Logo" width="190" height="80" /></p> <p>8 October 2019</p> <p><a href="http://www.kva.se/en/" target="_blank" rel="noopener">The Royal Swedish Academy of Sciences</a> has decided to award the Nobel Prize in Physics 2019</p> <p><em>“for contributions to our understanding of the evolution of the universe and Earth’s place in the cosmos”</em></p> <p>with one half to</p> <p><strong>James Peebles<br /> </strong>Princeton University, USA</p> <p><em>“for theoretical discoveries in physical cosmology”</em></p> <p>and the other half jointly to</p> <p><strong>Michel Mayor<br /> </strong>University of Geneva, Switzerland</p> <p>and</p> <p><strong>Didier Queloz<br /> </strong>University of Geneva, Switzerland<br /> University of Cambridge, UK</p> <p><em>“for the discovery of an exoplanet orbiting a solar-type star”</em></p> <p> </p> <h2>New perspectives on our place in the universe</h2> <p class="ingress">This year’s Nobel Prize in Physics rewards new understanding of the universe’s structure and history, and the first discovery of a planet orbiting a solar-type star outside our solar system.</p> <p><strong>James Peebles’</strong> insights into physical cosmology have enriched the entire field of research and laid a foundation for the transformation of cosmology over the last fifty years, from speculation to science. His theoretical framework, developed since the mid-1960s, is the basis of our contemporary ideas about the universe.</p> <p>The Big Bang model describes the universe from its very first moments, almost 14 billion years ago, when it was extremely hot and dense. Since then, the universe has been expanding, becoming larger and colder. Barely 400,000 years after the Big Bang, the universe became transparent and light rays were able to travel through space. Even today, this ancient radiation is all around us and, coded into it, many of the universe’s secrets are hiding. Using his theoretical tools and calculations, James Peebles was able to interpret these traces from the infancy of the universe and discover new physical processes.</p> <p>The results showed us a universe in which just five per cent of its content is known, the matter which constitutes stars, planets, trees – and us. The rest, 95 per cent, is unknown dark matter and dark energy. This is a mystery and a challenge to modern physics.</p> <p>In October 1995, <strong>Michel Mayor</strong> and <strong>Didier Queloz</strong> announced the first discovery of a planet outside our solar system, an exoplanet, orbiting a solar-type star in our home galaxy, the Milky Way. At the Haute-Provence Observatory in southern France, using custom-made instruments, they were able to see planet 51 Pegasi b, a gaseous ball comparable with the solar system’s biggest gas giant, Jupiter.</p> <p>This discovery started a revolution in astronomy and over 4,000 exoplanets have since been found in the Milky Way. Strange new worlds are still being discovered, with an incredible wealth of sizes, forms and orbits. They challenge our preconceived ideas about planetary systems and are forcing scientists to revise their theories of the physical processes behind the origins of planets. With numerous projects planned to start searching for exoplanets, we may eventually find an answer to the eternal question of whether other life is out there.</p> <p>This year’s Laureates have transformed our ideas about the cosmos. While James Peebles’ theoretical discoveries contributed to our understanding of how the universe evolved after the Big Bang, Michel Mayor and Didier Queloz explored our cosmic neighbourhoods on the hunt for unknown planets. Their discoveries have forever changed our conceptions of the world.</p> <h3>Illustrations</h3> <p>The illustrations are free to use for non-commercial purposes. Attribute ”© Johan Jarnestad/The Royal Swedish Academy of Sciences”.</p> <p><a href="https://www.nobelprize.org/uploads/2019/10/fig2_fy_en_backgroundradiation.pdf" target="_blank" rel="noopener">Illustration: Background radiation (pdf)</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/fig3_fy_en_starChart.pdf" target="_blank" rel="noopener">Illustration: Star chart (pdf)</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/fig4_fy_en_radialvelocitymethod.pdf" target="_blank" rel="noopener">Illustration: Radial velocity method (pdf)</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/fig5_fy_en_transitPhotometry.pdf" target="_blank" rel="noopener">Illustration: Transit photometry (pdf)</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/fig6_fy_en_milkyWay.pdf" target="_blank" rel="noopener">Illustration: Milky Way (pdf)</a></p> <h3>Read more about this year’s prize</h3> <p><a href="https://www.nobelprize.org/uploads/2019/10/popular-physicsprize2019-2.pdf" target="_blank" rel="noopener">Popular Science Background: New perspectives on our place in the universe (pdf)</a><br /> <a href="https://www.nobelprize.org/uploads/2019/10/advanced-physicsprize2019-3.pdf" target="_blank" rel="noopener">Scientific Background: </a><a href="https://www.nobelprize.org/uploads/2019/10/advanced-physicsprize2019-3.pdf" target="_blank" rel="noopener">Physical cosmology and an exoplanet orbiting a solar-type star</a><a href="https://www.nobelprize.org/uploads/2019/10/advanced-physicsprize2019-3.pdf" target="_blank" rel="noopener"> (pdf)</a></p> <p> </p> <p><strong>James Peebles,</strong> born 1935 in Winnipeg, Canada. Ph.D. 1962 from Princeton University, USA. Albert Einstein Professor of Science at Princeton University, USA.</p> <p><strong>Michel Mayor</strong>, born 1942 in Lausanne, Switzerland. Ph.D. 1971 from University of Geneva, Switzerland. Professor at University of Geneva, Switzerland.</p> <p><strong>Didier Queloz</strong>, born 1966 in Geneva, Switzerland. Ph.D. 1995 from University of Geneva, Switzerland. Professor at University of Geneva, Switzerland and University of Cambridge, UK.</p> <p> </p> <p><strong>Prize amount: </strong>9 million Swedish krona, with one half to James Peebles and the other half jointly to Michel Mayor and Didier Queloz <strong><br /> Further information: </strong>www.kva.se and http://www.nobelprize.org<strong><br /> Press contact: </strong>Eva Nevelius, Press Secretary, +46 8 673 95 44, +46 70 878 67 63, <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ed889b8cc383889b888184989ead869b8cc39e88">[email protected]</a><br /> <strong>Experts: </strong>Ulf Danielsson, +46 70 314 10 86, <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="add8c1cb83c9ccc3c4c8c1dedec2c3edddc5d4dec4cede83d8d883dec8">[email protected]</a>, Ariel Goobar, +46 8 553 786 59, <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d4b5a6bdb1b894b2ada7bdbffaa7a1faa7b1">[email protected]</a> and Mats Larsson (chairman), +46 8 553 786 47, <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a9c4c5e9cfd0dac0c287dadc87dacc">[email protected]</a>, members of the Nobel Committee for Physics</p> <hr /> <p class="smalltext">The Royal Swedish Academy of Sciences, founded in 1739, is an independent organisation whose overall objective is to promote the sciences and strengthen their influence in society. The Academy takes special responsibility for the natural sciences and mathematics, but endeavours to promote the exchange of ideas between various disciplines.</p> <p class="smalltext"><em>Nobel Prize® is a registered trademark of the Nobel Foundation.</em></p> <footer class="border-top pagecite" itemscope itemtype="http://schema.org/citation"> <p> To cite this section <br> MLA style: Press release. NobelPrize.org. Nobel Prize Outreach AB 2024. 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The 12 laureates' work and discoveries range from proteins' structures and machine learning to fighting for a world free of nuclear weapons.</p> <p>See them all presented here.</p> </div> </div> <figure class="featuredimage"> <a href="https://www.nobelprize.org/all-nobel-prizes-2024/"><picture><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-992x656.jpg" media="(min-width: 220px)" /><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-1520x1008.jpg" media="(min-width: 900px)" /><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-2048x1352.jpg" media="(min-width: 1400px)" /><img class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" alt="Illustration" /><noscript><img src="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-1024x676.jpg" alt="Illustration" /></noscript></picture></a> </figure> </article> </section> <section class="explore-laureates 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