{"id":191942,"date":"2025-09-01T17:01:10","date_gmt":"2025-09-01T17:01:10","guid":{"rendered":"https:\/\/www.europesays.com\/us\/191942\/"},"modified":"2025-09-01T17:01:10","modified_gmt":"2025-09-01T17:01:10","slug":"is-the-universe-infinite-scientists-reveal-how-vast-it-really-is","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/us\/191942\/","title":{"rendered":"Is the universe infinite? Scientists reveal how vast it really is.."},"content":{"rendered":"<p>One of the strongest indicators of this limit is the cosmic microwave background radiation, faint afterglow from the Big Bang. It was released when the Universe was just 3,80,000 years old, before which matter and energy were too tightly coupled for light to travel freely. Today it appears across the entire sky at a temperature of 2.7 degrees above absolute zero. Beyond this \u2018surface of last scattering,\u2019 no light can reach us, fixing the boundary of direct observation.<\/p>\n","protected":false},"excerpt":{"rendered":"One of the strongest indicators of this limit is the cosmic microwave background radiation, faint afterglow from the&hellip;\n","protected":false},"author":3,"featured_media":191943,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[107282,4514,28891,18187,89248,106931,55609,106937,106940,107279,45482,6570,21744,74314,106935,107280,10368,106936,106939,16814,43976,61212,916,106929,159,106932,40107,67,132,106933,106938,88304,106942,107281,106934,106930,68],"class_list":{"0":"post-191942","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-science","8":"tag-andromeda-galaxy","9":"tag-astronomy","10":"tag-astrophysics","11":"tag-big-bang","12":"tag-cosmic-horizon","13":"tag-cosmic-inflation","14":"tag-cosmic-microwave-background","15":"tag-cosmic-mysteries","16":"tag-cosmic-scale","17":"tag-cosmic-structure","18":"tag-cosmology","19":"tag-dark-energy","20":"tag-dark-matter","21":"tag-early-universe","22":"tag-finite-universe","23":"tag-flat-universe","24":"tag-galaxies","25":"tag-infinite-universe","26":"tag-light-years","27":"tag-milky-way","28":"tag-milky-way-galaxy","29":"tag-multiverse","30":"tag-nasa","31":"tag-observable-universe","32":"tag-science","33":"tag-space-expansion","34":"tag-space-science","35":"tag-united-states","36":"tag-unitedstates","37":"tag-universe-age","38":"tag-universe-edge","39":"tag-universe-expansion","40":"tag-universe-facts","41":"tag-universe-geometry","42":"tag-universe-limit","43":"tag-universe-size","44":"tag-us"},"share_on_mastodon":{"url":"","error":"Validation failed: Text character limit of 500 exceeded"},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/191942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/comments?post=191942"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/191942\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media\/191943"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media?parent=191942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/categories?post=191942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/tags?post=191942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}