{"id":42063,"date":"2025-10-27T01:35:50","date_gmt":"2025-10-26T20:05:50","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=42063"},"modified":"2025-10-28T16:04:55","modified_gmt":"2025-10-28T10:34:55","slug":"isros-chandrayaan-4-mission","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/isros-chandrayaan-4-mission\/","title":{"rendered":"ISRO\u2019s Chandrayaan-4 Mission"},"content":{"rendered":"<h2><strong>What\u2019s in today\u2019s article?<\/strong><\/h2>\n<ul>\n<li>Chandrayaan-4 Mission<\/li>\n<li>Key Objectives of the Mission<\/li>\n<li>Mission Strategy and Components<\/li>\n<li>Detailed Payloads<\/li>\n<li>Dual Rocket Launch Strategy<\/li>\n<li>Advanced Technology and Space D<strong>ocking Experiment (SPADEX)<\/strong><\/li>\n<li>News Summary<\/li>\n<\/ul>\n<h2><strong>Chandrayaan-4 Mission<\/strong><\/h2>\n<ul>\n<li>Following the success of <a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/chandrayaan-3\/\" target=\"_blank\" rel=\"noopener noreferrer\" target=\"_blank\"><strong>Chandrayaan-3,<\/strong><\/a> ISRO is now turning its attention to Chandrayaan-4, a lunar sample-return mission.<\/li>\n<li>This ambitious project aims to achieve a soft landing on the Moon, collect lunar rock samples, and return them to Earth.<\/li>\n<li>If successful, India would join the ranks of the United States, Russia, and China in accomplishing this challenging feat.<\/li>\n<\/ul>\n<h2><strong>Key Objectives of the Mission<\/strong><\/h2>\n<ul>\n<li>Achieving a safe and gentle landing on the lunar surface.<\/li>\n<li>Collecting and storing lunar samples.<\/li>\n<li>Lifting off from the Moon&#8217;s surface.<\/li>\n<li>Docking and undocking in lunar orbit.<\/li>\n<li>Transferring samples between spacecraft modules.<\/li>\n<li>Returning the collected samples safely to Earth.<\/li>\n<\/ul>\n<h2><strong>Mission Strategy and Components<\/strong><\/h2>\n<ul>\n<li>Chandrayaan-4\u2019s strategy is notably complex, involving five distinct components of the spacecraft:\n<ul>\n<li><strong>Propulsion System<\/strong>: Responsible for transporting the lander and ascender stages to the Moon.<\/li>\n<li><strong>Descender<\/strong>: Designed for the lunar landing, carrying equipment for soil sampling.<\/li>\n<li><strong>Ascender<\/strong>: Detaches from the lander after collecting samples, then lifts off from the lunar surface.<\/li>\n<li><strong>Transfer Module<\/strong>: Receives samples from the Ascender and transports them to the Re-entry module.<\/li>\n<li><strong>Re-entry Module<\/strong>: Safely brings the lunar samples back to Earth, designed to withstand the re-entry into Earth&#8217;s atmosphere.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>Detailed Payloads<\/strong><\/h2>\n<ul>\n<li><strong>Lunar Propulsion Module<\/strong>: Transports the Lunar Lander and Ascender stages to the Moon, similar to the propulsion module used in Chandrayaan-3.<\/li>\n<li><strong>Lunar Lander<\/strong>: Touches down on the Moon, carrying instruments to support the Ascender stage and soil sampling equipment.<\/li>\n<li><strong>Lunar Module Ascender<\/strong>: After collecting samples, it detaches from the Lander, ascends to lunar orbit, and prepares for docking.<\/li>\n<li><strong>Transfer Module<\/strong>: Transfers the samples from the Ascender to the Re-entry Module, propelling them back to Earth.<\/li>\n<li><strong>Re-entry Module<\/strong>: Designed to safely return to Earth with the lunar samples.<\/li>\n<\/ul>\n<h2><strong>Dual Rocket Launch Strategy<\/strong><\/h2>\n<ul>\n<li>Chandrayaan-4 will utilize two different rockets:\n<ul>\n<li><strong>Launch Vehicle Mark-3 (LMV-3)<\/strong>: The heavy lifter will carry the propulsion, descender, and ascender modules.<\/li>\n<li><strong>Polar Satellite Launch Vehicle (PSLV)<\/strong>: The workhorse will transport the transfer and re-entry modules to their designated lunar orbits. These rockets will be launched on different dates, with the earliest launch not expected before 2028.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>Advanced Technology and Space Docking Experiment (SPADEX)<\/strong><\/h2>\n<ul>\n<li>The mission\u2019s success will hinge on the successful docking of the Ascender Module with the Transfer Module in lunar orbit, a process that relies on the completion of the Space Docking Experiment (SPADEX).<\/li>\n<li>This experiment, developed by ISRO, involves two spacecraft and aims to advance technologies for orbital rendezvous, docking, and formation flying, which are crucial for the Chandrayaan-4 mission.<\/li>\n<li>By leveraging these sophisticated technologies and innovative strategies, ISRO aims to advance India\u2019s capabilities in lunar exploration and bring back samples from the Moon, marking another significant milestone in the country&#8217;s space exploration journey.<\/li>\n<\/ul>\n<h2><strong>News Summary<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/isro\/\" target=\"_blank\" rel=\"noopener noreferrer\" target=\"_blank\"><strong>ISRO<\/strong><\/a> has finalized the design for Chandrayaan-4, India\u2019s next Moon mission, which aims to bring lunar rock and soil samples back to Earth, with the mission likely to occur in 2027.<\/li>\n<li>Chandrayaan-4 will be more complex than its predecessor, involving five separate modules and requiring two space docking operations\u2014 a first for ISRO.<\/li>\n<li>Two key capabilities for this mission were successfully tested during Chandrayaan-3.<\/li>\n<\/ul>\n<p><strong>Final government approval is awaited<\/strong>. Additionally, <strong>ISRO has also completed the design for Chandrayaan-5<\/strong>, though its objectives and timeline are yet to be disclosed<\/p>\n<hr \/>\n<p>Source: <a href=\"https:\/\/indianexpress.com\/article\/india\/isro-chandrayaan-4-design-final-samples-from-moon-by-2027-9530162\/\" target=\"_blank\" rel=\"nofollow noopener\">ISRO: Chandrayaan-4 design final, samples from Moon by 2027<\/a> | <a href=\"https:\/\/economictimes.indiatimes.com\/news\/science\/isros-chandrayaan-4-to-bring-back-moon-rocks-and-soil-to-earth-use-dual-rocket-system\/articleshow\/108362357.cms?from=mdr\" target=\"_blank\" rel=\"nofollow noopener\">ET<\/a> | <a href=\"https:\/\/www.theweek.in\/news\/sci-tech\/2024\/03\/13\/what-makes-chandrayaan-4-mission-unique.html\" target=\"_blank\" rel=\"nofollow noopener\">The Week<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Following the success of Chandrayaan-3, ISRO is now turning its attention to Chandrayaan-4.<\/p>\n","protected":false},"author":5,"featured_media":42064,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[],"class_list":{"0":"post-42063","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/42063","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\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=42063"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/42063\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/42064"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=42063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=42063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=42063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}