{"id":253514,"date":"2023-07-26T20:44:16","date_gmt":"2023-07-26T15:14:16","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=253514"},"modified":"2023-07-26T20:44:16","modified_gmt":"2023-07-26T15:14:16","slug":"moon-missions-offer-tough-tests-landers-the-toughest","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/moon-missions-offer-tough-tests-landers-the-toughest\/","title":{"rendered":"Moon missions offer tough tests \u2013 landers, the toughest"},"content":{"rendered":"\n

Source: <\/b>The post is based on the article <\/span>\u201cMoon missions offer tough tests \u2013 landers, the toughest\u201d <\/b>\u00a0published in<\/span> The Hindu on 26th July 2023.<\/b><\/p>\n

What is the News?<\/b><\/h2>\n

According to the data, historically 40% of moon missions have failed and 60% of lander missions have been unsuccessful.<\/span><\/p>\n

What is the data on the success rate of Moon Missions?<\/b><\/h2>\n

Moon Missions<\/b>: Historically, over 40% of moon missions have failed.\u00a0<\/span><\/p>\n

\u2013 If we consider only those missions which involved a robotic lander (a spacecraft performing a controlled landing on the lunar surface), the failure rate sharply increases to over 60%.\u00a0<\/span><\/p>\n

\u2013 The failure rate of \u2018sample return\u2019 missions, which collect samples from the moon and bring them back to the earth is even higher at 67% as such missions are complex and riskier.<\/span><\/p>\n

\u2013 Impactor missions, in which a spacecraft or a part of it is deliberately made to collide with the moon in order to study the resulting crater or dust plume, also have a high failure rate of 56.3%.\u00a0<\/span><\/p>\n

Chandrayaan 2 Mission:<\/b> Indian Space Research Organisation (ISRO) Chandrayaan 2 mission was launched in 2019.The lander of Chandrayaan 2 \u2018Vikram\u2019 lost contact with the earth and went blank minutes before lunar touchdown. The mission of the lander and the rover \u2018Pragyan\u2019 was declared a failure. The orbiter mission was a success as the orbiter was placed in the intended orbit.<\/span><\/p>\n

Total number of lunar missions completed by decade<\/b>: The 1950s had a very high failure rate across mission types. All the orbiter missions failed. The overall failure rate was 84.6%.\u00a0<\/span><\/p>\n

\u2013 The 1960s saw the highest number of moon missions (74) for any decade thus far. But the overall failure rate remained relatively high at 62.2%.<\/span><\/p>\n

\u2013 The 1970s were much better with 40 missions and just a 25% failure rate. In general, the number of moon missions dropped in the following decades.\u00a0<\/span><\/p>\n

\u2013 The 2000s stood out as all the missions succeeded. The 2010s also had a much lower failure rate of 22% But the number of unsuccessful missions went up again in the following decade and the overall failure rate rose to 47.1%.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Source: The post is based on the article \u201cMoon missions offer tough tests \u2013 landers, the toughest\u201d \u00a0published in The Hindu on 26th July 2023. What is the News? According to the data, historically 40% of moon missions have failed and 60% of lander missions have been unsuccessful. What is the data on the success… Continue reading Moon missions offer tough tests \u2013 landers, the toughest<\/span><\/a><\/p>\n","protected":false},"author":10317,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,9],"tags":[10498],"class_list":["post-253514","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-public","tag-the-hindu","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/253514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10317"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=253514"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/253514\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=253514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=253514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=253514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}