{"id":630077,"date":"2026-01-19T10:11:25","date_gmt":"2026-01-19T09:11:25","guid":{"rendered":"https:\/\/cronologia-universale.it\/in-13-thousand-years\/"},"modified":"2026-01-19T10:11:25","modified_gmt":"2026-01-19T09:11:25","slug":"november-2017-3","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/november-2017-3\/","title":{"rendered":"November 2017"},"content":{"rendered":"<p>iPTF14hls, a bizarre supernova (or zombie star), continues to explode repeatedly. The first known one occurred in 1954, and several more recently within 11 weeks. One possible explanation (Pulsational Pair-Instability Supernovae), hypothesized by Daniel Kasen and discovered by Arcavi, Howell, and Birnstein, posits a star of enormous size (common shortly after the Big Bang, but rare now), so large and heavy that it creates antimatter (positrons) in its core, which would then trigger violent, periodic explosions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>iPTF14hls, a bizarre supernova (or zombie star), continues to explode repeatedly. The first known one&#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":[33],"tags":[],"class_list":["post-630077","post","type-post","status-publish","format-standard","hentry","category-cs-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>November 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\/november-2017-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"November 2017 - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"iPTF14hls, a bizarre supernova (or zombie star), continues to explode repeatedly. 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