{"id":7993,"date":"2025-09-11T10:40:10","date_gmt":"2025-09-11T08:40:10","guid":{"rendered":"https:\/\/brera.inaf.it\/?p=7993"},"modified":"2025-09-11T10:44:33","modified_gmt":"2025-09-11T08:44:33","slug":"astronomers-witness-newborn-planet-sculpting-the-dust-around-it-eso-press-release","status":"publish","type":"post","link":"https:\/\/brera.inaf.it\/en\/astronomers-witness-newborn-planet-sculpting-the-dust-around-it-eso-press-release\/","title":{"rendered":"GRB 250702B, an unusually long and repeating gamma-ray burst &#8211; ESO Press Release"},"content":{"rendered":"\n<p>Astronomers have detected an explosion of gamma rays that repeated several times over the course of a day, an event unlike anything ever witnessed before. The source of the powerful radiation was discovered to be outside our galaxy, its location pinpointed by the European Southern Observatory\u2019s Very Large Telescope (VLT). Gamma-ray bursts (GRBs) are the most powerful explosions in the Universe, normally caused by the catastrophic destruction of stars. But no known scenario can completely explain this new GRB, whose true nature remains a mystery &#8211; <a href=\"https:\/\/www.eso.org\/public\/unitedkingdom\/news\/eso2514\/?lang\" target=\"_blank\" rel=\"noreferrer noopener\">Read the full story on<\/a>:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1260\" height=\"518\" src=\"https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png\" alt=\"The orange dot at the centre of this image is a powerful explosion that repeated several times over the course of a day, an event unlike anything ever witnessed before. The image, taken with ESO\u2019s Very Large Telescope (VLT), allowed astronomers to determine that the explosion didn\u2019t take place in the Milky Way but in another galaxy. This gamma-ray burst, named GRB 250702B, was first spotted by high-energy telescopes on 2 July, but its location was uncertain. The image shown here was taken on 3 July with the VLT\u2019s HAWK-I infrared camera, which accurately pinpointed the location of the source. The explosion appeared to be nested within another galaxy, later confirmed by the NASA\/ESA Hubble Space Telescope. Different scenarios have been proposed to explain this event, such as the collapse of a massive star, or a star ripped apart by a black hole. But none of them can fully account for all the observed properties of the explosion unless the involved objects are rather unusual - Credit: ESO\/A. Levan, A. Martin-Carrillo et al.\" class=\"wp-image-8001\"\/><figcaption class=\"wp-element-caption\">The orange dot at the centre of this image is a powerful explosion that repeated several times over the course of a day, an event unlike anything ever witnessed before. The image, taken with ESO\u2019s Very Large Telescope (VLT), allowed astronomers to determine that the explosion didn\u2019t take place in the Milky Way but in another galaxy.  This gamma-ray burst, named GRB 250702B, was first spotted by high-energy telescopes on 2 July, but its location was uncertain. The image shown here was taken on 3 July with the VLT\u2019s HAWK-I infrared camera, which accurately pinpointed the location of the source. The explosion appeared to be nested within another galaxy, later confirmed by the NASA\/ESA Hubble Space Telescope. Different scenarios have been proposed to explain this event, such as the collapse of a massive star, or a star ripped apart by a black hole. But none of them can fully account for all the observed properties of the explosion unless the involved objects are rather unusual &#8211; Credit: ESO\/A. Levan, A. Martin-Carrillo et al. <\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Astronomers have detected an explosion of gamma rays that repeated several times over the course of a day, an event unlike anything ever witnessed before. The source of the powerful radiation was discovered to be outside our galaxy, its location pinpointed by the European Southern Observatory\u2019s Very Large Telescope (VLT). Gamma-ray bursts (GRBs) are the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8001,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,30],"tags":[390,619,365],"class_list":["post-7993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en","category-scientific-news","tag-eso-2","tag-planet","tag-vlt"],"blocksy_meta":[],"featured_image_urls":{"full":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",1260,518,false],"thumbnail":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",150,62,false],"medium":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",300,123,false],"medium_large":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",768,316,false],"large":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",1024,421,false],"1536x1536":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",1260,518,false],"2048x2048":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/09\/eso2514-ENG.png",1260,518,false]},"post_excerpt_stackable":"<p>Astronomers have detected an explosion of gamma rays that repeated several times over the course of a day, an event unlike anything ever witnessed before. The source of the powerful radiation was discovered to be outside our galaxy, its location pinpointed by the European Southern Observatory\u2019s Very Large Telescope (VLT). Gamma-ray bursts (GRBs) are the most powerful explosions in the Universe, normally caused by the catastrophic destruction of stars. But no known scenario can completely explain this new GRB, whose true nature remains a mystery &#8211; Read the full story on: The orange dot at the centre of this image&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/brera.inaf.it\/en\/category\/news-en\/\" rel=\"category tag\">News<\/a>, <a href=\"https:\/\/brera.inaf.it\/en\/category\/news-en\/scientific-news\/\" rel=\"category tag\">Scientific news<\/a>","author_info":{"name":"Maria Rosa Panzera","url":"https:\/\/brera.inaf.it\/en\/author\/maria-rosa-panzera\/"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/posts\/7993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/comments?post=7993"}],"version-history":[{"count":3,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/posts\/7993\/revisions"}],"predecessor-version":[{"id":8003,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/posts\/7993\/revisions\/8003"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/media\/8001"}],"wp:attachment":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/media?parent=7993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/categories?post=7993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tags?post=7993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}