{"id":55520,"date":"2025-07-18T10:53:02","date_gmt":"2025-07-18T05:23:02","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=55520"},"modified":"2025-07-18T10:53:22","modified_gmt":"2025-07-18T05:23:22","slug":"scientists-detect-record-breaking-black-hole-merger-through-gravitational-waves","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/scientists-detect-record-breaking-black-hole-merger-through-gravitational-waves\/","title":{"rendered":"Scientists Detect Record-Breaking Black Hole Merger Through Gravitational Waves"},"content":{"rendered":"<h2><b>Black Hole Merger Discovery Latest News<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Scientists have detected <\/span><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/gravitational-waves\/\" target=\"_blank\"><span style=\"font-weight: 400;\">gravitational waves<\/span><\/a><span style=\"font-weight: 400;\"> from the largest black hole merger ever observed.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Such mergers are rare but release immense energy, sending ripples\u2014gravitational waves\u2014across spacetime. These waves, predicted by Einstein\u2019s General Relativity in 1915, are extremely weak and only detectable from major cosmic events like black hole collisions.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The latest discovery, given the name <\/span><b>GW231123<\/b><span style=\"font-weight: 400;\">, is exceptional because it involves the biggest black holes to have been observed in any such event.<\/span><\/li>\n<\/ul>\n<h2><b>Why This Black Hole Merger Discovery Is Unique<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Scientists have detected gravitational waves from the merger of <\/span><b>two unusually large black hole<\/b><span style=\"font-weight: 400;\">s\u2014one 140 times and the other 100 times the mass of the Sun\u2014forming a new <\/span><span style=\"font-weight: 400;\">black hole about 225 times larger than the Sun<\/span><span style=\"font-weight: 400;\">.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">In general, a black hole is a region in Space where the pulling force of gravity is so strong that neither matter nor light can ever escape.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This size range, between 100 and 150 solar masses, defies current scientific theories, which suggest stars that are large typically don\u2019t collapse into black holes.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Stars in this size range are believed to end their lives in powerful explosions, not by collapsing into black holes, according to current scientific theories.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Adding to the surprise, one of the black holes was spinning near the maximum speed allowed by Einstein\u2019s General Theory of Relativity.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This discovery not only <\/span><span style=\"font-weight: 400;\">breaks previous records for black hole mergers but also challenges existing models of black hole formation and the life cycle of massive stars<\/span><span style=\"font-weight: 400;\">, offering fresh insights into the structure and evolution of the universe.<\/span><\/li>\n<\/ul>\n<h2><b>Gravitational Waves: A New Window to Understand the Universe<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Before 2015, scientists mainly relied on electromagnetic waves\u2014like light, X-rays, and radio waves\u2014to study the universe.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, vast portions of the cosmos, especially those involving dark matter and dark energy, remain invisible to these methods.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Black holes are a prime example; their existence was known, but they couldn\u2019t be directly observed.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The discovery of gravitational waves changed this. Generated by massive cosmic events such as black hole mergers, these ripples in spacetime can now be detected on Earth using highly sensitive instruments.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Though all moving objects create gravitational waves, only those from extremely large events are strong enough to reach us.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gravitational waves offer scientists a new kind of vision, revealing previously hidden aspects of the universe.<\/span><\/li>\n<\/ul>\n<h2><b>LIGO and the Expansion of Gravitational Wave Detection<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The first-ever detection of gravitational waves in 2015 was achieved by two <\/span><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/laser-interferometer-gravitational-wave-observatory-ligo\/\" target=\"_blank\"><span style=\"font-weight: 400;\">LIGO<\/span><\/a><span style=\"font-weight: 400;\"> observatories in the United States.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Since then, additional detectors like Virgo in Italy and KAGRA in Japan have joined the effort, forming the LVK (LIGO-Virgo-KAGRA) collaboration, which made the latest major discovery.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">To strengthen this global network, <\/span><span style=\"font-weight: 400;\">a third LIGO observatory is planned in India<\/span><span style=\"font-weight: 400;\">, called LIGO-India. However, the project has faced significant delays.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Originally scheduled to begin operations in 2024, final government approval and a budget of \u20b92,600 crore were only secured in 2023.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Department of Atomic Energy has identified Hingoli district in Maharashtra as the site for the observatory.\u00a0<\/span><\/li>\n<\/ul>\n<p><b>Source:<\/b> <a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/merger-two-black-holes-biggest-space-discovery-10132578\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">IE<\/span><\/a><span style=\"font-weight: 400;\">\u00a0| <\/span><a href=\"https:\/\/indianexpress.com\/article\/technology\/science\/scientists-detect-signals-of-biggest-black-hole-merger-10127210\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">IE<\/span><\/a><span style=\"font-weight: 400;\">\u00a0| <\/span><a href=\"https:\/\/www.ligo.caltech.edu\/news\/ligo20250715#:~:text=The%20powerful%20merger%20produced%20a,network%20on%20November%2023%2C%202023.\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">LIGO<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gravitational waves reveal biggest black hole merger yet. LIGO-Virgo-KAGRA detect two massive black holes defying scientific theories.<\/p>\n","protected":false},"author":18,"featured_media":55532,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[1630,60,22,59],"class_list":{"0":"post-55520","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"tag-black-hole-merger-discovery","9":"tag-mains-articles","10":"tag-upsc-current-affairs","11":"tag-upsc-mains-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/55520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=55520"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/55520\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/55532"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=55520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=55520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=55520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}