{"id":71880,"date":"2019-11-20T11:54:00","date_gmt":"2019-11-20T15:54:00","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-455483"},"modified":"2023-11-16T15:44:38","modified_gmt":"2023-11-16T20:44:38","slug":"two-of-a-space-kind-apollo-12-and-mars-2020","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/solar-system\/two-of-a-space-kind-apollo-12-and-mars-2020\/","title":{"rendered":"Two of a Space Kind: Apollo 12 and Mars 2020"},"content":{"rendered":"<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?w=1600\" class=\"attachment-2048x2048 size-2048x2048\" alt=\" Apollo 12 astronaut Charles \u201cPete\u201d Conrad Jr. stands beside NASA's Surveyor 3 spacecraft and artist's concept of Mars rover\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg 1600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=1536,864 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=900,506 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?resize=1200,675 1200w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">(Left) Apollo 12 astronaut Charles \u201cPete\u201d Conrad Jr. stands beside NASA’s Surveyor 3 spacecraft; the lunar module Intrepid can be seen in the distance. Apollo 12 landed on the Moon’s Ocean of Storms on Nov. 20, 1969. (Right) Mars 2020 rover, seen here in an artist’s concept, will make history’s most accurate landing on a planetary body when it lands at Mars’ Jezero Crater on Feb. 18, 2021.<\/div><div class=\"hds-credits\">Credits: NASA\/JPL-Caltech<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>Fifty years ago today, during their second moonwalk, Charles \u201cPete\u201d Conrad Jr. and Alan Bean became the first humans to reach out and touch a spacecraft that had previously landed on another celestial body. NASA\u2019s 1969 Apollo 12 Moon mission and the upcoming Mars 2020 mission to the Red Planet may be separated by half a century and targets that are 100 million miles apart, but they share several mission goals unique in the annals of space exploration.<\/p>\n\n\n\n<p>\u201cWe on the Mars 2020 project feel a special kinship with the crew of Apollo 12,\u201d said John McNamee, Mars 2020 project manager at NASA\u2019s Jet Propulsion Laboratory in Pasadena, California. \u201cThey achieved the first precision landing, deployed the most advanced suite of science instruments of the time, and were the first to interact with another spacecraft that put down on another world. That\u2019s all part of the Mars 2020 playbook as well.\u201d<\/p>\n\n\n\n<p>NASA needed Apollo 12 to prove a precision landing was possible because future Apollo missions would target locations in the lunar highlands, where mountains, massive craters, boulder fields and rilles could ruin their day if the lunar modules strayed from their prescribed landing path. And while the previous mission, Apollo 11, was a monumental success, it overshot its intended landing site in the Sea of Tranquility by about 4 miles (6 kilometers).<\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"788\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?w=1400\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Apollo 12 lunar module pilot Alan Bean holds a container of lunar soil\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg 1400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=900,507 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12b-16.jpg?resize=1200,675 1200w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Apollo 12 lunar module pilot Alan Bean holds a container of lunar soil, with the reflection of mission commander Charles “Pete” Conrad Jr. visible on his visor. The image was taken on the Moon’s Ocean of Storms on Nov. 20, 1969. Apollo 12’s lunar activities included the deployment of the Apollo Lunar Surface Experiments Package (ALSEP), finding NASA’s Surveyor 3 spacecraft (which landed on the Moon on April 19, 1967), and collecting 75 pounds (34 kilograms) of rock samples.<\/div><div class=\"hds-credits\">Credits: NASA<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>To demonstrate a precision landing, Apollo 12 mission planners could have chosen just about anywhere on the nearside of the Moon by targeting any of literally millions of known geologic features. In the end, they chose for Pete and Al a relatively nondescript crater in the Ocean of Storms because JPL had plunked down a spacecraft there two-and-a-half years earlier.<\/p>\n\n\n\n<p>\u201cWhen Pete and Al put the lunar module Intrepid down within about 520 feet [160 meters] of Surveyor 3, it gave NASA the confidence to later send Apollo 15 to Hadley Rille, Apollo 16 to go to the Descartes Highlands and Apollo 17 to land at Taurus Littrow,\u201d said McNamee. \u201cWe also have to be precise with our landing on Mars \u2014 not only to pave the way for future precision landings on the Red Planet for both robotic and human-crewed missions, but also because Mars 2020\u2019s scientifically appealing landing site at <a href=\"https:\/\/www.jpl.nasa.gov\/news\/news.php?feature=7539\" rel=\"noopener\">Jezero Crater<\/a> has all sorts of cliffsides, sand dunes, boulders and craters that can adversely affect us during landing.\u201d<\/p>\n\n\n\n<p>Mars 2020 will be history\u2019s first planetary mission to include <a href=\"https:\/\/www.jpl.nasa.gov\/news\/news.php?feature=7442\" rel=\"noopener\">terrain relative navigation<\/a>, a computerized autopilot that utilizes optical imagers and computers to help Mars 2020 avoid landing hazards and make the most accurate landing on a planetary body in history.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sweet Suite Science<\/strong><\/h2>\n\n\n\n<p>There are other similarities. During their first moonwalk, Conrad and Bean deployed the Apollo Lunar Surface Experiments package (ALSEP). Powered by a radioisotope thermoelectric generator, the five science instruments (seismometer, atmospheric sensor, solar wind spectrometer, lunar dust collector and magnetic field sensor) were the most advanced ever to be carried to another celestial body, and they sent back groundbreaking data on the lunar environment from November 1969 to September 1977. When Mars 2020 alights at Jezero Crater, it also will be equipped with the <a href=\"https:\/\/mars.nasa.gov\/mars2020\/mission\/instruments\/\" rel=\"noopener\">most advanced science instruments<\/a> ever to travel to another world.<\/p>\n\n\n\n<p>\u201cThe science instruments we carry benefit not only from advances in technology, but the hard lessons learned by those missions of exploration, including Apollo, that preceded us,\u201d said Ken Farley, project scientist for Mars 2020 from Caltech in Pasadena. \u201cOur seven state-of-the-art science tools will help us acquire the most information possible about Martian geology, atmosphere, environmental conditions, and potential biosignatures, giving us insight into the Red Planet like never before.\u201d<\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?w=1600\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Apollo 12 astronauts\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg 1600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=1536,864 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=900,506 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12c-16.jpg?resize=1200,675 1200w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Apollo 12 astronauts (left to right) lunar module pilot Alan Bean, command module pilot Richard Gordon and commander Charles \u201cPete\u201d Conrad Jr. relax during a flight rehearsal in the Apollo mission simulator.<\/div><div class=\"hds-credits\">Credits: NASA<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Return to Sender<\/strong><\/h2>\n\n\n\n<p>During their second moonwalk, Conrad and Bean reached the <a href=\"https:\/\/solarsystem.nasa.gov\/missions\/surveyor-3\/in-depth\/\" rel=\"noopener\">Surveyor 3 lander<\/a> \u2014 one of the robotic missions that explored the Moon in advance of astronauts. They not only collected images and samples of the lunar surface surrounding the spacecraft, but cut, sawed and hacked parts off the three-legged spacecraft, including Surveyor\u2019s TV camera and its surface-soil sampling scoop.<\/p>\n\n\n\n<p>\u201cNASA wanted to see what happened to materials that were exposed to the lunar environment for an extended period,\u201d said McNamee. \u201cTo this day, the samples of Surveyor 3, which endured 31 months at the Ocean of Storms, are our best and only demonstrations of the natural processes that can affect spacecraft components left on the Moon.\u201d<\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"671\" height=\"1005\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg?w=671\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"A graphic novel chronicling the historic flight of Apollo 12 \" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg 671w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg?resize=200,300 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg?resize=267,400 267w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg?resize=401,600 401w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/pia23552-nasa.jpg?resize=601,900 601w\" sizes=\"(max-width: 671px) 100vw, 671px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">A graphic novel chronicling the historic flight of Apollo 12.<\/div><div class=\"hds-credits\">Credits: NASA\/PPG<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>One of Mars 2020\u2019s major mission goals is to seek signs of past microscopic life, collecting the most compelling rock core and Martian dust samples. Subsequent missions, currently under consideration by NASA, would send spacecraft to Mars to collect these samples from the surface and return them to Earth for in-depth analysis. To help engineers design spacesuits to shield astronauts from the elements, NASA is sending five samples of spacesuit material along with one of Mars 2020\u2019s science instruments, called <a href=\"https:\/\/mars.nasa.gov\/mars2020\/mission\/instruments\/sherloc\/\" rel=\"noopener\">Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals (SHERLOC)<\/a>. A piece of an astronaut\u2019s helmet and four kinds of fabric are mounted on the <a href=\"https:\/\/www.nasa.gov\/feature\/johnson-built-device-to-help-mars-2020-rover-search-for-signs-of-life\" rel=\"noopener\">calibration target<\/a> for this instrument. Scientists will use SHERLOC, as well as a camera that photographs visible light, to study how the materials degrade in ultraviolet radiation. It will mark the first time spacesuit material has been sent to Mars for testing and will provide a vital comparison for ongoing testing at NASA\u2019s Johnson Space Center.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Robots First, Astronauts Later<\/strong><\/h2>\n\n\n\n<p>Just as NASA\u2019s Surveyor missions helped blaze a trail for Neil and Buzz on Apollo 11, Pete and Al on 12, as well as Al and Ed (<a href=\"https:\/\/www.nasa.gov\/mission_pages\/apollo\/missions\/apollo14.html\" rel=\"noopener\">Apollo 14<\/a>), Dave and Jim (<a href=\"https:\/\/www.nasa.gov\/mission_pages\/apollo\/missions\/apollo15.html\" rel=\"noopener\">Apollo 15<\/a>), John and Charlie (<a href=\"https:\/\/www.nasa.gov\/mission_pages\/apollo\/missions\/apollo16.html\" rel=\"noopener\">Apollo 16<\/a>), and Gene and Harrison (<a href=\"https:\/\/www.nasa.gov\/mission_pages\/apollo\/missions\/apollo17.html\" rel=\"noopener\">Apollo 17<\/a>), Mars 2020 is helping set the tone for <a href=\"https:\/\/www.jpl.nasa.gov\/news\/news.php?feature=7422\" rel=\"noopener\">future crewed missions to Mars<\/a>.<\/p>\n\n\n\n<p>Mars 2020\u2019s landing system includes a suite of sensors that will document the descent to the surface in never-seen-before detail so that future robotic and crewed missions factor those details into their landings. When on the surface, the rover\u2019s <a href=\"https:\/\/mars.nasa.gov\/mars2020\/mission\/instruments\/moxie\/\" rel=\"noopener\">MOXIE<\/a> instrument is designed to demonstrate that converting Martian carbon dioxide to pure oxygen is possible, and <a href=\"https:\/\/mars.nasa.gov\/mars2020\/mission\/instruments\/rimfax\/\" rel=\"noopener\">RIMFAX<\/a> could teach us how to use ground-penetrating radar so that future missions can use it to find sources of fresh water.<\/p>\n\n\n\n<p>\u201cIsaac Newton once wrote, \u2018If I have seen further it is by standing on the shoulders of Giants,’\u201d said McNamee. \u201cWhen Mars 2020 flies, it will allow us to see farther into the geologic history of the Red Planet than ever before \u2014 and that is happening because we too are standing on the shoulders of giants \u2014 giants like the crew of Apollo 12.\u201d<\/p>\n\n\n\n<p>The launch period for Mars 2020 opens on July 17, 2020. It will land at Mars\u2019 Jezero Crater on Feb. 18, 2021.<\/p>\n\n\n\n<p>For more information about the mission, visit:<\/p>\n\n\n\n<p><a href=\"https:\/\/mars.nasa.gov\/mars2020\/\" rel=\"noopener\">https:\/\/mars.nasa.gov\/mars2020\/<\/a><\/p>\n\n\n\n<p><strong>DC Agle<br><\/strong>Jet Propulsion Laboratory, Pasadena, Calif.<br>818-393-9011<br>agle@jpl.nasa.gov<\/p>\n\n\n\n<p><strong>Alana Johnson<br><\/strong>NASA Headquarters, Washington<br>202-672-4780<br>alana.r.johnson@nasa.gov<\/p>\n\n\n\n<p>2019-232<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fifty years ago today, during their second moonwalk, Charles \u201cPete\u201d Conrad Jr. and Alan Bean became the first humans to reach out and touch a spacecraft that had previously landed on another celestial body. NASA\u2019s 1969 Apollo 12 Moon mission and the upcoming Mars 2020 mission to the Red Planet may be separated by half […]<\/p>\n","protected":false},"author":53,"featured_media":77781,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"footnotes":""},"categories":[2658,2930,3760,2860,3229,2744,8609,2807],"news-tags":[],"internal-terms":[8605,8612],"coauthors":[12651],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"Two of a Space Kind: Apollo 12 and Mars 2020","url":"https:\/\/www.nasa.gov\/solar-system\/two-of-a-space-kind-apollo-12-and-mars-2020\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/solar-system\/two-of-a-space-kind-apollo-12-and-mars-2020\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg"},"articleSection":"The Solar System","author":[{"@type":"Person","name":"Jet Propulsion Laboratory"}],"creator":["Jet Propulsion Laboratory"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["The Solar System","Planets","Apollo 12","Earth's Moon","Jet Propulsion Laboratory","Mars","Mars 2020","Perseverance (Rover)"],"dateCreated":"2019-11-20T15:54:00Z","datePublished":"2019-11-20T15:54:00Z","dateModified":"2023-11-16T20:44:38Z"},"rendered":"<meta name=\"parsely-title\" content=\"Two of a Space Kind: Apollo 12 and Mars 2020\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/solar-system\/two-of-a-space-kind-apollo-12-and-mars-2020\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2019-11-20T15:54:00Z\" \/>\n<meta name=\"parsely-section\" content=\"The Solar System\" \/>\n<meta name=\"parsely-tags\" content=\"The Solar System,Planets,Apollo 12,Earth's Moon,Jet Propulsion Laboratory,Mars,Mars 2020,Perseverance (Rover)\" \/>\n<meta name=\"parsely-author\" content=\"Jet Propulsion Laboratory\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":6,"time_ago":"5 years","featured_image":{"id":77781,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/11\/apollo12_m2020_compare_v03-16.jpg","title":"apollo12_m2020_compare_v03-16","alt":"Apollo 12 astronaut Charles \u201cPete\u201d Conrad Jr. stands beside NASA's Surveyor 3 spacecraft and artist's concept of Mars rover","caption":""},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/71880"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/53"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=71880"}],"version-history":[{"count":6,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/71880\/revisions"}],"predecessor-version":[{"id":471720,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/71880\/revisions\/471720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/77781"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=71880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=71880"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=71880"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=71880"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=71880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}