{"id":235381,"date":"2026-04-16T22:02:53","date_gmt":"2026-04-17T03:02:53","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/04\/the-gravity-particle-should-exist-so-where-is-it"},"modified":"2026-04-16T22:02:53","modified_gmt":"2026-04-17T03:02:53","slug":"the-gravity-particle-should-exist-so-where-is-it","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/04\/the-gravity-particle-should-exist-so-where-is-it","title":{"rendered":"The Gravity Particle Should Exist. So Where Is It?"},"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\/e9xOMOTTW6U?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Head to <a href=\"https:\/\/brilliant.org\/Spacetime\/\">https:\/\/brilliant.org\/Spacetime\/<\/a> to start learning for free. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer.<\/p>\n<p>Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it\u2019s the elusive graviton\u2014the quantum particle of gravity\u2014whose discovery will finally allow us to stitch together our two great theories of nature into a single master theory. But what is the graviton, and does it even exist?<\/p>\n<p>Help us determine the future of Space Time with the PBS Annual Survey:<br \/>\n<a href=\"https:\/\/to.pbs.org\/2025SurveyST\">https:\/\/to.pbs.org\/2025SurveyST<\/a><\/p>\n<p>Sign Up on Patreon to get access to the Space Time Discord!<br \/> \/ pbsspacetime.<\/p>\n<p>Check out the Space Time Merch Store.<br \/>\n<a href=\"https:\/\/www.pbsspacetime.com\/shop\">https:\/\/www.pbsspacetime.com\/shop<\/a>.<\/p>\n<p>Sign up for the mailing list to get episode notifications and hear special announcements!<\/p>\n<div class=\"more-link-wrapper\"> <a class=\"more-link\" href=\"https:\/\/lifeboat.com\/blog\/2026\/04\/the-gravity-particle-should-exist-so-where-is-it\">Continue reading \u201cThe Gravity Particle Should Exist. So Where Is It?\u201d | &gt;<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Head to https:\/\/brilliant.org\/Spacetime\/ to start learning for free. Plus, our viewers get 20% off an annual Premium subscription for unlimited daily access to everything Brilliant has to offer. Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it\u2019s the elusive graviton\u2014the quantum particle of gravity\u2014whose discovery [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,42,48,1617],"tags":[],"class_list":["post-235381","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-media-arts","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235381","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=235381"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235381\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=235381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=235381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=235381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}