{"id":630057,"date":"2026-01-19T10:10:25","date_gmt":"2026-01-19T09:10:25","guid":{"rendered":"https:\/\/cronologia-universale.it\/october-16-2024\/"},"modified":"2026-01-19T10:10:25","modified_gmt":"2026-01-19T09:10:25","slug":"september-27-2017","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/september-27-2017\/","title":{"rendered":"September 27, 2017"},"content":{"rendered":"<p>The discovery of gravitational waves emitted by a fourth black hole collision is announced. This time, the Virgo Observatory in Pisa also witnessed it. Through triangulation with two American observatories in Louisiana and Washington state, the location was also identified. The resulting new body has 53 solar masses, and three solar masses are channeling energy into distorting space-time and generating gravitational waves.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The discovery of gravitational waves emitted by a fourth black hole collision is announced. This&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-630057","post","type-post","status-publish","format-standard","hentry","category-vg-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>September 27, 2017 - Cronologia Universale<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cronologia-universale.it\/en\/september-27-2017\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"September 27, 2017 - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"The discovery of gravitational waves emitted by a fourth black hole collision is announced. 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