{"id":40616,"date":"2025-10-22T11:52:50","date_gmt":"2025-10-22T06:22:50","guid":{"rendered":"https:\/\/edunovations.com\/currentaffairs\/?p=40616"},"modified":"2025-10-22T11:52:52","modified_gmt":"2025-10-22T06:22:52","slug":"chandrayaan-2-lunar-exosphere-discovery","status":"publish","type":"post","link":"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/","title":{"rendered":"Chandrayaan-2 Lunar Exosphere Discovery: Solar Storm Impact on Moon"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Chandrayaan-2_lunar_exosphere_discovery_reveals_how_solar_storms_increase_molecule_density_on_the_Moon_Explore_ISROs_CHACE-2_findings_and_their_significance_for_space_missions\" >Chandrayaan-2 lunar exosphere discovery reveals how solar storms increase molecule density on the Moon. Explore ISRO\u2019s CHACE-2 findings and their significance for space missions.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Chandrayaan-2_Detects_Solar_Impact_on_Moons_Exosphere\" >Chandrayaan-2 Detects Solar Impact on Moon&#8217;s Exosphere<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Understanding_the_Lunar_Exosphere\" >Understanding the Lunar Exosphere<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#The_Role_of_CHACE-2_Instrument\" >The Role of CHACE-2 Instrument<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Implications_for_Lunar_Exploration\" >Implications for Lunar Exploration<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Why_This_News_Is_Important\" >Why This News Is Important<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Relevance_to_Government_Exam_Aspirants\" >Relevance to Government Exam Aspirants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Contribution_to_Scientific_Knowledge\" >Contribution to Scientific Knowledge<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Historical_Context\" >Historical Context<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Key_Takeaways_from_%E2%80%9CChandrayaan-2_Detects_Solar_Impact_on_Moons_Exosphere%E2%80%9D\" >Key Takeaways from &#8220;Chandrayaan-2 Detects Solar Impact on Moon&#8217;s Exosphere&#8221;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#FAQs_Frequently_Asked_Questions\" >FAQs: Frequently Asked Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/edunovations.com\/currentaffairs\/national\/chandrayaan-2-lunar-exosphere-discovery\/#Some_Important_Current_Affairs_Links\" >Some Important Current Affairs Links<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chandrayaan-2_lunar_exosphere_discovery_reveals_how_solar_storms_increase_molecule_density_on_the_Moon_Explore_ISROs_CHACE-2_findings_and_their_significance_for_space_missions\"><\/span>Chandrayaan-2 lunar exosphere discovery reveals how solar storms increase molecule density on the Moon. Explore ISRO\u2019s CHACE-2 findings and their significance for space missions.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chandrayaan-2_Detects_Solar_Impact_on_Moons_Exosphere\"><\/span>Chandrayaan-2 Detects Solar Impact on Moon&#8217;s Exosphere<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In a groundbreaking achievement, India&#8217;s Chandrayaan-2 mission has observed the first-ever impact of a solar Coronal Mass Ejection (CME) on the Moon&#8217;s exosphere. This significant discovery was made using the CHACE-2 (Chandrayaan-2 Atmospheric Compositional Explorer-2) instrument onboard the orbiter. The findings were published in the journal <em>Geophysical Research Letters<\/em>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Understanding_the_Lunar_Exosphere\"><\/span>Understanding the Lunar Exosphere<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The Moon&#8217;s exosphere is an extremely thin and tenuous layer of gases that surrounds the lunar surface. Unlike Earth&#8217;s atmosphere, the exosphere lacks a magnetic field and is composed of low-density particles such as hydrogen, helium, and sodium. These particles are primarily released from the lunar surface due to solar radiation, micrometeorite impacts, and other space weather phenomena.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Role_of_CHACE-2_Instrument\"><\/span>The Role of CHACE-2 Instrument<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The CHACE-2 instrument aboard Chandrayaan-2 is designed to study the composition and density of the Moon&#8217;s exosphere. During the solar event in May 2024, CHACE-2 recorded a significant increase in the total pressure of the lunar exosphere. This surge in pressure was directly correlated with the arrival of the CME at the Moon&#8217;s surface. The data indicated that the number density of neutral atoms and molecules in the exosphere increased by more than ten times, providing direct evidence of the Moon&#8217;s response to solar activity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Implications_for_Lunar_Exploration\"><\/span>Implications for Lunar Exploration<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This observation marks a significant milestone in lunar science, as it provides the first experimental evidence of how solar storms can influence the Moon&#8217;s exosphere. Understanding these interactions is crucial for future lunar exploration missions, as the exosphere plays a vital role in surface weathering and the potential for resource utilization on the Moon.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\" id=\"Chandrayaan-2-lunar-exosphere-discovery\"><img decoding=\"async\" src=\"https:\/\/currentaffairs.adda247.com\/wp-content\/uploads\/multisite\/sites\/5\/2025\/10\/21110214\/Chandrayaan-2-Detects-Solar-Impact-on-Moons-Exosphere.jpg\" alt=\"Chandrayaan-2 lunar exosphere discovery\" title=\"Chandrayaan-2 lunar exosphere discovery\"\/><figcaption class=\"wp-element-caption\">Chandrayaan-2 lunar exosphere discovery<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_This_News_Is_Important\"><\/span>Why This News Is Important<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Relevance_to_Government_Exam_Aspirants\"><\/span>Relevance to Government Exam Aspirants<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This discovery is pertinent for students preparing for various government exams, including those for positions in the Indian Administrative Service (IAS), Indian Police Service (IPS), Indian Foreign Service (IFS), and other civil services. The understanding of space weather phenomena and their effects on celestial bodies is an emerging area of study in the General Studies papers, particularly in topics related to science and technology.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Contribution_to_Scientific_Knowledge\"><\/span>Contribution to Scientific Knowledge<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The findings enhance India&#8217;s position in global space research and underscore the capabilities of ISRO in conducting advanced scientific investigations. This achievement not only contributes to the field of planetary science but also demonstrates the practical applications of space missions in understanding complex environmental interactions.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Historical_Context\"><\/span>Historical Context<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The study of the Moon&#8217;s exosphere has been a subject of scientific interest since the early space exploration missions. Previous lunar missions, including those by NASA and the Soviet Union, have provided limited data on the Moon&#8217;s tenuous atmosphere. However, it was not until India&#8217;s Chandrayaan-2 mission that comprehensive observations were made, leading to the current breakthrough. The detection of solar storm impacts on the Moon&#8217;s exosphere aligns with theoretical models proposed in the 1970s, which suggested that solar activity could influence the lunar environment. This discovery validates those models and opens new avenues for research in space weather and planetary atmospheres.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Takeaways_from_%E2%80%9CChandrayaan-2_Detects_Solar_Impact_on_Moons_Exosphere%E2%80%9D\"><\/span>Key Takeaways from &#8220;Chandrayaan-2 Detects Solar Impact on Moon&#8217;s Exosphere&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>No.<\/th><th>Key Takeaway<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td><strong>First direct observation<\/strong> of a solar Coronal Mass Ejection (CME) affecting the Moon&#8217;s exosphere.<\/td><\/tr><tr><td>2<\/td><td><strong>CHACE-2 instrument<\/strong> aboard Chandrayaan-2 recorded a significant increase in the lunar exosphere&#8217;s pressure during the solar event.<\/td><\/tr><tr><td>3<\/td><td>The <strong>number density<\/strong> of neutral atoms and molecules in the exosphere increased by more than ten times, indicating a direct response to solar activity.<\/td><\/tr><tr><td>4<\/td><td>The findings provide <strong>experimental evidence<\/strong> supporting theoretical models of solar influence on lunar environments.<\/td><\/tr><tr><td>5<\/td><td>The discovery has <strong>implications for future lunar exploration<\/strong>, aiding in the understanding of space weather effects on celestial bodies.<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Chandrayaan-2 lunar exosphere discovery<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs_Frequently_Asked_Questions\"><\/span>FAQs: Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>1. What is the main discovery of Chandrayaan-2 related to the Moon?<\/strong><br>Chandrayaan-2 detected the first-ever impact of a solar Coronal Mass Ejection (CME) on the Moon&#8217;s exosphere, showing that solar storms can significantly increase the density of molecules in the lunar atmosphere.<\/p>\n\n\n\n<p><strong>2. What instrument on Chandrayaan-2 made this discovery?<\/strong><br>The CHACE-2 (Chandrayaan-2 Atmospheric Compositional Explorer-2) instrument onboard the orbiter detected the changes in the lunar exosphere.<\/p>\n\n\n\n<p><strong>3. What is the Moon\u2019s exosphere?<\/strong><br>The Moon\u2019s exosphere is a very thin layer of gases surrounding its surface, composed mainly of hydrogen, helium, sodium, and other trace gases, with extremely low density.<\/p>\n\n\n\n<p><strong>4. How did the solar storm affect the Moon\u2019s exosphere?<\/strong><br>During the solar Coronal Mass Ejection, the number density of neutral atoms and molecules in the Moon\u2019s exosphere increased more than tenfold, indicating a strong impact of solar activity.<\/p>\n\n\n\n<p><strong>5. Why is this discovery important for future lunar missions?<\/strong><br>It helps scientists understand how solar activity affects the Moon\u2019s environment, which is crucial for lunar surface operations, habitat planning, and resource utilization.<\/p>\n\n\n\n<p><strong>6. Which journal published the findings of this discovery?<\/strong><br>The findings were published in the <em>Geophysical Research Letters<\/em> journal.<\/p>\n\n\n\n<p><strong>7. How does this discovery benefit India\u2019s space research?<\/strong><br>It highlights ISRO\u2019s advanced capabilities in space science and strengthens India\u2019s position in global lunar research.<\/p>\n\n\n\n<p><strong>8. Are there historical precedents for studying the Moon&#8217;s exosphere?<\/strong><br>Yes, earlier missions by NASA and the Soviet Union provided limited data, but Chandrayaan-2 provided the first detailed observation of solar impact on the exosphere.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Some_Important_Current_Affairs_Links\"><\/span>Some Important Current Affairs Links<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/currentaffairs\/category\/national\/\" target=\"_blank\" rel=\"noreferrer noopener\">State Current Affairs<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" 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https:\/\/edunovations.com\/currentaffairs\/wp-content\/uploads\/2023\/03\/Banner-current-affairs-2-1-768x128.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption class=\"wp-element-caption\">Download this App for Daily Current Affairs MCQ&#8217;s<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\" id=\"News-Website-Development-Company\"><a href=\"https:\/\/www.martindiainfotech.com\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"900\" height=\"150\" src=\"https:\/\/edunovations.com\/currentaffairs\/wp-content\/uploads\/2023\/04\/News-Website-Development-Company-Banner.png\" alt=\"News Website Development Company\" class=\"wp-image-438\" title=\"News Website Development Company\" srcset=\"https:\/\/edunovations.com\/currentaffairs\/wp-content\/uploads\/2023\/04\/News-Website-Development-Company-Banner.png 900w, 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Explore ISRO\u2019s CHACE-2 findings and their significance for space missions. Chandrayaan-2 Detects Solar Impact on Moon&#8217;s Exosphere In a groundbreaking achievement, India&#8217;s Chandrayaan-2 mission has observed the first-ever impact of a solar Coronal Mass Ejection (CME) on the Moon&#8217;s exosphere. This&#8230;<\/p>\n","protected":false},"author":6,"featured_media":40647,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,158],"tags":[29426,13534,29422,29424,29425,29423],"class_list":["post-40616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national","category-research_invention_discovery","tag-chace-2-instrument","tag-chandrayaan-2","tag-isro-discovery","tag-lunar-research","tag-moon-exosphere","tag-solar-storm-moon"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/posts\/40616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/comments?post=40616"}],"version-history":[{"count":2,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/posts\/40616\/revisions"}],"predecessor-version":[{"id":40648,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/posts\/40616\/revisions\/40648"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/media\/40647"}],"wp:attachment":[{"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/media?parent=40616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/categories?post=40616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edunovations.com\/currentaffairs\/wp-json\/wp\/v2\/tags?post=40616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}