{"id":671,"date":"2026-04-19T10:00:00","date_gmt":"2026-04-19T10:00:00","guid":{"rendered":"https:\/\/hyokal.com\/?p=671"},"modified":"2026-04-19T10:00:00","modified_gmt":"2026-04-19T10:00:00","slug":"synthetic-universe-allows-us-to-see-and-hear-galaxies-evolving-from-time-immemorial-video","status":"publish","type":"post","link":"https:\/\/hyokal.com\/?p=671","title":{"rendered":"Synthetic Universe allows us to &#8216;see and hear&#8217; galaxies evolving from time immemorial (video)"},"content":{"rendered":"<p><\/p>\n<div id=\"article-body\">\n<p id=\"elk-a51aa775-2be0-4df4-a55a-219217ba4081\">Have you ever dreamed of witnessing the birth of the first galaxies? Perhaps you could fast-forward through billions of years of the evolution of the universe and watch those galaxies grow and form the universe we know today? Of course, unfortunately that&#8217;s not possible. But thanks to an innovative new and unique audio-visual simulation of the &#8220;virtual universe&#8221;, scientists have developed the best picture of cosmic evolution to date, and you can see and hear it too.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">The COLIBRE Virtual Universe uses the Standard Model of Cosmology to model the dynamics of the cold galactic dust and gas that form the building blocks of galaxies. <u>star<\/u>then from the first billion years <u>big bang<\/u> Until today. COLIBRE has developed a synthetic universe that closely resembles observations, with more computational power than previously available in any other universe simulation. <u>james webb space telescope<\/u> (JWST) has created the early universe. As such, this study provides a validation of the Standard Model of cosmology, also known as the Lambda Cold Dark Matter (LCDM) model.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">And interestingly, this synthetic universe is so convincing that even some astronomers do a double take.<\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet=\"\" class=\"clear-both pb-0 pt-2 mb-4\">\n        <span class=\"&#10;            flex&#10;            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]&#10;            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]&#10;            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold&#10;        \"><\/p>\n<p>            you may like<br \/>\n        <\/span><\/p>\n<\/aside>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check=\"\" id=\"elk-02bc71db-fcab-46bd-a36d-575e5a775424\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\" style=\"max-width:1600px;\">\n<p class=\"vanilla-image-block\" style=\"padding-top:56.25%;\"> <picture data-new-v2-image=\"true\"><source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-1200-80.png.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-1024-80.png.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-970-80.png.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-650-80.png.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-480-80.png.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/xsUMoJaa5qfUpQnNo88CJS-320-80.png.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\"><br \/>\n<\/source><\/picture><\/p>\n<\/div>\n<\/div><figcaption itemprop=\"caption description\" class=\" inline-layout\"><span class=\"caption-text\">(Left) The so-called cosmic web. The color encodes the projected density of gas and stars. (Right) Frontal (top) and side-on (right) views of two of the many galaxies formed in the simulation. <\/span><span class=\"credit\" itemprop=\"copyrightHolder\">(Image credit: Schaye et al. (2026))<\/span><\/figcaption><\/figure>\n<p id=\"elk-a50fb6d1-1008-44bf-9627-31e8a5331450\">&#8220;It&#8217;s refreshing to see &#8216;galaxies&#8217; come out of the computer that are indistinguishable from the real thing, and share many of the properties that astronomers measure in real data, including their number, brightness, color and size,&#8221; said COLIBRE team member Carlos Frenk. <u>stated in a statement<\/u>. &#8220;I like to tease my fellow observers and ask them, &#8216;Which galaxy catalog do you think these images came from?&#8217; Most notably, we can create this synthetic universe purely by solving the relevant physical equations in an expanding universe.&#8221;<\/p>\n<aside data-block-type=\"embed\" data-render-type=\"fte\" data-skip=\"dealsy\" data-widget-type=\"seasonal\" class=\"hawk-root\"\/>\n<p id=\"elk-a50fb6d1-1008-44bf-9627-31e8a5331450-1\">The simulations were run on Durham University&#8217;s COSMA8 supercomputer and overcame a challenge that others had found insurmountable: cold gas modeling. But this modeling difficulty has been a problem because stars are formed when cold gas and dust collapse under their own gravity. To accurately simulate stars, we need to be able to accurately simulate the motion of cold gas. COLIBRE was also able to simulate small dust particles and their impact on blocking ultraviolet light, which helps form hydrogen molecules and prevents the cooling of gas and the birth of stars.<\/p>\n<p>&#8220;Much of the gas in real galaxies is cold and dusty, but most previous large-scale simulations have had to ignore this,&#8221; COLIBRE leader Joop Schaye of Leiden University in the Netherlands said in a statement. \u201cWith COLIBRE, we have finally delivered on these critical components.\u201d<\/p>\n<p>But while synthetic universes are great, there&#8217;s one cosmic puzzle revealed by JWST that remains unanswered. These are the so-called &#8220;little red dots&#8221; that this instrument has seen in large numbers at one point in cosmic time.<\/p>\n<div id=\"slice-container-newsletterForm-articleInbodyContent-oVakpWbeshwj2mnuh2owxk\" class=\"slice-container newsletter-inbodyContent-slice newsletterForm-articleInbodyContent-oVakpWbeshwj2mnuh2owxk slice-container-newsletterForm\">\n<div data-hydrate=\"true\" class=\"newsletter-form__wrapper newsletter-form__wrapper--inbodyContent\">\n<div class=\"newsletter-form__container\">\n<section class=\"newsletter-form__top-bar\"\/>\n<section class=\"newsletter-form__main-section\">\n<p class=\"newsletter-form__strapline\">Breaking the latest in space news, rocket launches, skywatching events, and more.<\/p>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<p>That may be because these mysterious objects (which appeared in large numbers 600 million years after the Big Bang, but disappeared when the universe was around 1.5 billion years old) are heavy. <u>black hole<\/u> seed.<\/p>\n<p>Most of the simulations were completed in 2025, but some are still running and analysis of the data already provided will take years.<\/p>\n<p>&#8220;We&#8217;re excited not just about the science, but also about creating new ways to explore science,&#8221; James Trayford of the University of Portsmouth, UK, who led the development of COLIBRE&#8217;s dust model and the sonification of its visualization, said in a statement. &#8220;These tools may provide new insights, make our field more accessible, and help build intuition about how galaxies grow and evolve.&#8221;<\/p>\n<p>The COLIBRE study was published Monday (April 13) in the journal <u>Royal Astronomical Society Monthly Notices<\/u>.<\/p>\n<\/div>\n<p>#Synthetic #Universe #hear #galaxies #evolving #time #immemorial #video<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever dreamed of witnessing the birth of the first galaxies? Perhaps you could fast-forward through billions of years of the evolution of the universe and watch those galaxies grow and form the universe we know today? Of course, unfortunately that&#8217;s not possible. But thanks to an innovative new and unique audio-visual simulation of &#8230; <a title=\"Synthetic Universe allows us to &#8216;see and hear&#8217; galaxies evolving from time immemorial (video)\" class=\"read-more\" href=\"https:\/\/hyokal.com\/?p=671\" aria-label=\"Read more about Synthetic Universe allows us to &#8216;see and hear&#8217; galaxies evolving from time immemorial (video)\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":672,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[995,685,994,1423,1422,586,789,1191],"class_list":["post-671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-evolving","tag-galaxies","tag-hear","tag-immemorial","tag-synthetic","tag-time","tag-universe","tag-video"],"_links":{"self":[{"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/posts\/671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hyokal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=671"}],"version-history":[{"count":0,"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/posts\/671\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hyokal.com\/index.php?rest_route=\/wp\/v2\/media\/672"}],"wp:attachment":[{"href":"https:\/\/hyokal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hyokal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hyokal.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}