{"id":167852,"date":"2023-07-19T20:45:32","date_gmt":"2023-07-20T01:45:32","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/07\/time-flowed-five-times-slower-shortly-after-the-big-bang"},"modified":"2023-07-19T20:45:32","modified_gmt":"2023-07-20T01:45:32","slug":"time-flowed-five-times-slower-shortly-after-the-big-bang","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/07\/time-flowed-five-times-slower-shortly-after-the-big-bang","title":{"rendered":"Time Flowed Five Times Slower Shortly after the Big Bang"},"content":{"rendered":"

<\/a><\/p>\n

\u201cFor decades Isaac Newton gave us this vision of a universe where space and time is fixed, and every clock across the universe ticks at exactly the same rate. Then Einstein shattered this vision by proposing that time is actually rubbery and relative,\u201d says Geraint Lewis, an astrophysicist at the University of Sydney and lead author of the study. \u201cNow we\u2019ve shown that Einstein was, once again, correct.\u201d<\/p>\n

The Einsteinian concept of time running slower in the early universe arose in the late 1920s as astronomers were discovering cosmic expansion. Galaxies in the sky were found to be flying away from the Milky Way at high speed, swept along by the ceaselessly growing void\u2014and the farther off they were, the faster they flew. This not only meant that the universe was once much smaller and denser\u2014arising in a \u201cbig bang\u201d from some compact, primordial point\u2014but also that the most distant galaxies visible to us should be receding at close to the speed of light.<\/p>\n

According to Einstein\u2019s special and general theories of relativity, both circumstances alter the flow of time. As light from one of those far-distant galaxies travels from the heavier gravitational grip of the deep, dense early cosmos and across the continuously expanding universe, it must traverse increasingly greater expanses of space to reach Earth. Consequently, time becomes stretched<\/a> in a phenomenon known as time dilation<\/a>: a clock running 10 billion years ago would tick at a normal rate to an observer from that time, but from the perspective of someone today, it would appear to be ticking much slower<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u201cFor decades Isaac Newton gave us this vision of a universe where space and time is fixed, and every clock across the universe ticks at exactly the same rate. Then Einstein shattered this vision by proposing that time is actually rubbery and relative,\u201d says Geraint Lewis, an astrophysicist at the University of Sydney and lead [\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],"tags":[],"class_list":["post-167852","post","type-post","status-publish","format-standard","hentry","category-cosmology"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/167852","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=167852"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/167852\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=167852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=167852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=167852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}