[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-636546-105":59,"doc-detail-636546-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","image-analysis-of-unusual-structures-on-the-far-side-of-the-moon-in-the-crater-paracelsus-c","Image Analysis of Unusual Structures on the Far Side of the Moon in the Crater Paracelsus C","","Authors analyze Apollo 15 and Lunar Reconnaissance Orbiter images of two unusual features in the crater Paracelsus C on the Moon’s far side. The structures initially resemble walls or towers, but combining multiple views shows a larger northeast/southwest oriented feature made of two walls flanking a narrow valley or passageway. Single-image shading and 3D terrain visualization suggest a southwest entrance and a passageway ending at a terrain rise, potentially extending underground. Surrounding terrain appears excavated and differs in underlying structure from lunar background.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/image-analysis-of-unusual-structures-on-the-far-side-of-the-moon-in-the-crater-paracelsus-c/636546/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/image-analysis-of-unusual-structures-on-the-far-side-of-the-moon-in-the-crater-paracelsus-c/636546.png","ImageObject",300,407,{"name":92,"@type":93},"Elsa","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What data sources are used to analyze the Paracelsus C features?","Question",{"text":111,"@type":112},"The analysis uses Apollo 15 images and Lunar Reconnaissance Orbiter images of two unusual features in the crater Paracelsus C.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"Why do the features look like walls or towers at first glance?",{"text":116,"@type":112},"At first glance the structures resemble walls or towers, but multi-image combination indicates a different geometry involving two walls on either side of a narrow valley/passageway.",{"name":118,"@type":109,"acceptedAnswer":119},"What do the authors infer about the origin and surrounding terrain of the structures?",{"text":120,"@type":112},"The surrounding terrain appears excavated by an unknown mechanism, and the objects are visually different from the lunar background because their underlying structure differs.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},636546,1792678470,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},137455077381,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Image Analysis of Unusual Structures on the Far Side of the Moon in the Crater Paracelsus C  \nMark J Carlotto*, Francis L Ridge and Ananda L Sirisena  \nThe Lunascan Project and Society for Planetary SETI Research, Tennessee, USA  \n*Corresponding author: Carlotto MJ, The Lunascan Project, Society for Planetary SETI Research, Tennessee, USA, Tel:  \n978-807-7758; [E-mail: mark@carlotto.us](E-mail: mark@carlotto.us)  \nAbstract  \nThe authors present an analysis of Apollo 15 and Lunar Reconnaissance Orbiter images of two unusual features in the crater Paracelsus C on the far side of the moon. At first glance these structures appear to be walls or towers on the lunar surface. By combining multiple images, we show the larger feature, oriented in a northeast/southwest direction, is not simply a wall but two walls on either side of a narrow valley or “passageway”. Using single image shape from shading and 3D terrain visualization we show in a computer-generated perspective view looking northeast that the southwest end appears to be the entrance to the passageway. A reverse angle view looking southwest shows the passageway ending at a rise of terrain at the other end, possibly leading underground. The terrain surrounding the two structures is not flat but appears “excavated” by some unknown mechanism, natural or artificial. It is shown that these objects are visually different from the lunar background because their underlying structure is different.  \nKeywords: Paracelsus C; Moon; Lunar  \nReceived: July 26, 2016; Accepted: September 20, 2016; Published: September 30, 2016  \nIntroduction  \nThe search for extra-terrestrial intelligence (SETI) began in the 1960s with radio-telescopes and has, to date, produced no positive evidence of its existence. During these early years of SETI, Sagan [1] spoke about the possibility of extraterrestrial visitation, “It is not out of the question that artifacts of these visits still exist, or even that some kind of base is maintained (possibly automatically) within the solar system to provide continuity for successive expeditions. Because of weathering and the possibility of detection and interference by the inhabitants of the Earth, it would be preferable not to erect such a base on the Earth’s surface. The Moon seems one reasonable alternative. Forthcoming high resolution photographic reconnaissance of the Moon from space vehicles – particularly of the back side – might bear these possibilities in mind”.  \nFoster [2] estimated frequencies of visitations by extraterrestrials or their messenger probes and suggested the possibility that past encounters may have left behind artifacts or indirect evidence (e.g., deranged planetary terrain) . Seeking a broader  \nalternative to radio SETI, a search for extraterrestrial artifacts (SETA) was proposed in the 1980s [3] . The search for alien artifacts on the moon [4,5] is an outgrowth of this more inclusive search strategy.  \nDavies [6] called for a citizen science approach to SETI stating “rather than leaving SETI to a small and heroic band of radio astronomers, we should mobilize the entire scientific community to ‘keep their eyes open’ for telltale signs of alien technological activity.” One suggestion is to look for evidence of mining or quarrying activities. Where on the Earth the evidence may be buried beneath overlaying strata, Davies [6] believes “Quarrying or construction on the moon or asteroids would persist conspicuously for much longer, and scrutiny of the Lunar Reconnaissance Orbiter data would be a useful exercise”.  \nThis paper provides evidence supporting the hypothesis that certain features in the crater Paracelsus C on the far side of the moon may be artificial in origin.“Background” summarizes the discovery of these features – a case study in citizen science. Many times, objects that appear unusual in older lower resolution photographs turn out to be unremarkable in higher resolution digital images. Analysis of LRO images in “Preliminary Image ","cbCaiv2lPuLb6YZ5","https://ap.wps.com/l/cbCaiv2lPuLb6YZ5","pdf",1372745,13,"English","# Abstract\n# Introduction\n## Background\n## Preliminary Image Analysis\n# Three-Dimensional Analysis\n# Lunar Context\n# Discussion","[{\"question\":\"What data sources are used to analyze the Paracelsus C features?\",\"answer\":\"The analysis uses Apollo 15 images and Lunar Reconnaissance Orbiter images of two unusual features in the crater Paracelsus C.\"},{\"question\":\"Why do the features look like walls or towers at first glance?\",\"answer\":\"At first glance the structures resemble walls or towers, but multi-image combination indicates a different geometry involving two walls on either side of a narrow valley/passageway.\"},{\"question\":\"What do the authors infer about the origin and surrounding terrain of the structures?\",\"answer\":\"The surrounding terrain appears excavated by an unknown mechanism, and the objects are visually different from the lunar background because their underlying structure differs.\"}]","Image Analysis of Unusual Structures on the Far Side of the Moon in the Crater Paracelsus C | PDF",33]