{"id":208223,"date":"2025-03-10T01:05:09","date_gmt":"2025-03-10T06:05:09","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/03\/mind-the-gap-will-tiny-discrepancies-derail-cosmology"},"modified":"2025-03-10T01:05:09","modified_gmt":"2025-03-10T06:05:09","slug":"mind-the-gap-will-tiny-discrepancies-derail-cosmology","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/03\/mind-the-gap-will-tiny-discrepancies-derail-cosmology","title":{"rendered":"Mind the Gap: Will Tiny Discrepancies Derail Cosmology?"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/bRd7OdBhAj0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Renowned astrophysicist and educator Alex Filippenko joins Brian Greene to discuss an increasingly disturbing cosmological mismatch known as the Hubble Tension, a gap that may require a radical rewriting of the history of the universe.<\/p>\n<p>This program is part of the Big Ideas series, supported by the John Templeton Foundation.<\/p>\n<p>Participant: Alex Filippenko.<br \/> Moderator: Brian Greene.<\/p>\n<p>0:00:00 \u2014 Introduction.<br \/> 0:00:50 \u2014 Welcome to Alex Filippenko.<br \/> 0:03:58 \u2014 The Most Important Lesson of Science.<br \/> 0:06:47 \u2014 The Hubble Tension.<br \/> 0:12:04 \u2014 Measuring the Expansion Rate of the Universe.<br \/> 0:23:31 \u2014 How far out can we measure?<br \/> 0:27:10 \u2014 Galaxies with Type 1A Supernovae and Cepheids.<br \/> 0:32:57 \u2014 Cosmic Distance Ladder Summary.<br \/> 0:37:30 \u2014 The Universe\u2019s Expansion Rate Today.<br \/> 0:47:20 \u2014 How can we be certain the measurements are correct?<br \/> 0:51:00 \u2014 CMB and using Theoretical Models to Extrapolate the Expansion Rate.<br \/> 1:00:57 \u2014 Positive outcomes to this tension.<br \/> 1:02:14 \u2014 Filippenko\u2019s thoughts on the position of Wendy Freedman\u2019s recent paper.<br \/> 1:14:09 \u2014 Will the Cepheid data set remain at 42?<br \/> 1:16:55 \u2014 Filippenko\u2019s thoughts on the Hubble tension.<br \/> 1:22:40 \u2014 How Cosmology became a precision science.<br \/> 1:25:11 \u2014 Is Inflation a Falsifiable Theory?<br \/> 1:29:30 \u2014 Filippenko\u2019s view of Inflation and the Multiverse.<br \/> 1:31:08 \u2014 Filippenko\u2019s view of Cyclic Inflation and Steinhardt and Penrose\u2019s theories.<br \/> 1:35:15 \u2014 Falsifiable Aspects of Inflation.<br \/> 1:41:54 \u2014 Discovering the Accelerated Expansion of the Universe.<br \/> 1:47:54 \u2014 Filippenko\u2019s thoughts on Saul Perlmutter\u2019s team\u2019s analysis methods.<br \/> 1:50:47 \u2014 Filippenko\u2019s reaction to the initial discovery.<br \/> 1:59:04 \u2014 Thoughts on Dark Energy and the Great Rip.<br \/> 2:01:58 \u2014 Conclusion.<br \/> 2:03:16 \u2014 Credits.<\/p>\n<p>VISIT our Website: <a href=\"http:\/\/www.worldsciencefestival.com\">http:\/\/www.worldsciencefestival.com<\/a>.<br \/> FOLLOW us on Social Media:<br \/> Facebook: \/ worldsciencefestival.<br \/> Twitter: \/ worldscifest.<br \/> Instagram: \/ worldscifest.<br \/> TikTok: \/ worldscifest.<br \/> LinkedIn: \/ world-science-festival.<br \/> #worldsciencefestival #briangreene #cosmology #astrophysics #alexfilippenko #bigbang #hubbletension #cosmicinflation #cosmicmicrowavebackground #multiverse #bigrip #darkenergy<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Renowned astrophysicist and educator Alex Filippenko joins Brian Greene to discuss an increasingly disturbing cosmological mismatch known as the Hubble Tension, a gap that may require a radical rewriting of the history of the universe. This program is part of the Big Ideas series, supported by the John Templeton Foundation. Participant: Alex Filippenko. Moderator: Brian [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,219],"tags":[],"class_list":["post-208223","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/208223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/661"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=208223"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/208223\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=208223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=208223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=208223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}