{"id":288098,"date":"2023-04-11T15:45:50","date_gmt":"2023-04-11T19:45:50","guid":{"rendered":"https:\/\/www.nasa.gov\/?post_type=topic&p=288098"},"modified":"2023-09-19T13:37:34","modified_gmt":"2023-09-19T17:37:34","slug":"the-crawlers","status":"publish","type":"topic","link":"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/the-crawlers\/","title":{"rendered":"The Crawlers"},"content":{"rendered":"<div id=\"\" class=\" hds-module hds-module-full wp-block-nasa-blocks-secondary-navigation\"><div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\"><div id=\"\" class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-light hds-module hds-module-full wp-block-nasa-blocks-hdsnav\"><button type=\"button\" class=\"hds-secondary-nav-mobile-button display-flex tablet:display-flex desktop:display-none width-full flex-align-center bg-carbon-90 border-color-carbon-80 color-spacesuit-white\" aria-expanded=\"false\" aria-controls=\"hds-secondary-nav-track\"><span>Exploration Ground Systems<\/span><svg width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><\/button><div class=\"hds-secondary-nav-track grid-container grid-container-extrawide padding-0 tablet:padding-x-3 desktop:padding-x-2 hds-secondary-navigation-has-breadcrumbs\"><div class=\"hds-secondary-navigation-breadcrumbs display-none tablet:display-none desktop:display-flex flex-align-center\"><nav class=\"usa-breadcrumb\" aria-label=\"Breadcrumbs\"><ol class=\"usa-breadcrumb__list\"><li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/www.nasa.gov\/\" class=\"usa-breadcrumb__link\"><span>Home<\/span><\/a><\/li><li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/\" class=\"usa-breadcrumb__link\"><span>Exploration Ground Systems<\/span><\/a><\/li><li class=\"usa-breadcrumb__list-item usa-current\" aria-current=\"page\"><span>The Crawlers<\/span><\/li><\/ol><\/nav><\/div><div class=\"hds-secondary-navigation-menu-items\"><nav><ul class=\"usa-nav__primary usa-accordion flex-justify-center margin-0\"><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/\">EGS Home<\/a><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>Artemis<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/humans-in-space\/space-launch-system\/\">Space Launch System (SLS)<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/orion\">Orion<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/humans-in-space\/human-landing-system\/\">Human Landing System (HLS)<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/mission\/gateway\/\">Gateway<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/blogs.nasa.gov\/artemis\/\" rel=\"noopener\">Artemis Blog<\/a><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" class=\"usa-accordion__button usa-nav__link\" aria-expanded=\"false\" aria-controls=\"basic-nav-section-one\"><span>Artemis Missions<\/span><svg class=\"hds-desktop-submenu-toggle-icon display-none tablet:display-none desktop:display-block\" width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><svg class=\"hds-mobile-submenu-toggle-icon display-block tablet:display-block desktop:display-none\" width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"8\" cy=\"8\" r=\"7.5\" fill=\"#0B3D91\" stroke=\"white\"\/><rect x=\"4\" y=\"7.6001\" width=\"8\" height=\"0.8\" fill=\"white\"\/><rect class=\"hds-mobile-submenu-toggle-icon-line-vertical\" x=\"7.59998\" y=\"12\" width=\"8\" height=\"0.8\" transform=\"rotate(-90 7.59998 12)\" fill=\"white\"\/><\/svg><\/button><ul id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/mission\/artemis-i\/\">Artemis I<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/mission\/artemis-ii\/\">Artemis II<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item\"><button type=\"button\" 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id=\"basic-nav-section-one\" class=\"usa-nav__submenu\" hidden><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/images.nasa.gov\/\" rel=\"noopener\">NASA Image Library<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.flickr.com\/photos\/nasakennedy\/albums\/72157649473620280\" rel=\"noopener\">Flickr<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/exploration-ground-systems-news-and-resources\/\">Media Resources<\/a><\/li><\/ul><\/nav><\/div><div class=\"hds-secondary-navigation-menu-spacer\"> <\/div><\/div><\/div><\/div><\/div>\n\n<div id=\"\" class=\"hds-topic-hero position-relative bg-carbon-black overflow-hidden width-full maxw-full grid-container display-flex flex-align-center flex-justify-center minh-tablet padding-y-9 padding-x-3 color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-topic-hero\"><figure class=\"hds-media-background  \"><img fetchpriority=\"high\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?w=1536\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"NASA's crawler-transporter 2 is photographed outside near the Vehicle Assembly Building at the agency's Kennedy Space Center in Florida.\" style=\"transform: scale(1); transform-origin: 24% 26%; object-position: 24% 26%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg 6720w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=2048,1365 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=1200,800 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/05\/ct-2.jpg?resize=2000,1333 2000w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" loading=\"eager\" \/><\/figure><div class=\"skrim-overlay skrim-left mobile-skrim-top\"><\/div>\n\t<div class=\"hds-grid-container position-relative display-flex flex-align-center flex-justify-start width-full\">\n\t\t<div class=\"width-full maxw-tablet\">\n\t\t\t<div class=\"margin-bottom-7\">\n\t\t\t\t<h1 class=\"display-72 font-weight-extrabold line-height-sm margin-bottom-2 color-spacesuit-white-important\">The Crawlers<\/h1>\n\t\t\t\t<p class=\"p-lg margin-0 color-spacesuit-white-important\"><\/p>\n\t\t\t<\/div>\n\t\t\t<div class=\"hds-topic-hero-stats\">\n\t\t\t\t<h2 class=\"color-spacesuit-white-important label margin-bottom-2\"><\/h2>\n\t\t\t\t<div class=\"grid-row\">\n\t\t\t\t\t<div class=\"grid-col grid-row flex-align-center padding-right-2 desktop:padding-right-4\">\n\t\t\t\t\t\t<div class=\"grid-col grid-col-auto\">\n\t\t\t\t\t\t\t<div class=\"stat-number line-height-sm color-nasa-blue-tint font-weight-thin font-mono-2xl\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"color-spacesuit-white-important grid-col padding-left-2 tablet:padding-left-3\">\n\t\t\t\t\t\t\t<h4 class=\"stat-value line-height-md\"><\/h4>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col grid-row flex-align-center padding-right-2  desktop:padding-right-4\">\n\t\t\t\t\t\t<div class=\"grid-col grid-col-auto\">\n\t\t\t\t\t\t\t<div class=\"stat-number line-height-sm color-nasa-blue-tint font-weight-thin font-mono-2xl\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"color-spacesuit-white-important grid-col padding-left-2 tablet:padding-left-3 tablet:padding-left-3\">\n\t\t\t\t\t\t\t<h4 class=\"stat-value line-height-md\"><\/h4>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div><\/div>\n\n\n<p>A pair of behemoth machines called crawler-transporters have carried the load of taking rockets and spacecraft to the launch pad for more than 50 years at NASA\u2019s Kennedy Space Center in Florida. Each the size of a baseball infield and powered by locomotive and large electrical power generator engines, the crawler-transporters stand ready to keep up the work for the next generation of launch vehicles to lift astronauts into space. <\/p>\n\n\n\n<p>The crawlers are unique in the world, having been built in 1965 to move the massive Saturn V rocket from Kennedy\u2019s Vehicle Assembly Building to Launch Complex 39. After the Moon landing and Skylab programs ended, the crawlers continued their work, taking space shuttles to their launch pads for 30 years. <\/p>\n\n\n\n<p>With the shuttle fleet retired in 2011, the crawlers are envisioned as critical elements of future launch operations at Kennedy. <strong>Crawler-transporter 2<\/strong>\u202f(CT-2) is integral to the\u202f<a rel=\"noreferrer noopener\" href=\"https:\/\/www.nasa.gov\/specials\/artemis\/\" target=\"_blank\">Artemis<\/a>\u202f missions, sending the first woman and first person of color to the Moon. <\/p>\n\n\n\n<p><strong>Fun Facts: <\/strong><\/p>\n\n\n\n<ul>\n<li><strong>Weight<\/strong>: Approximately 6.6 million pounds (or the weight of about 15 Statues of Liberty or 1,000 pickup trucks).<\/li>\n\n\n\n<li><strong>Height<\/strong>: Varies from approximately 20 feet to 26 feet, based on the position of the jacking, equalization and leveling cylinders.<\/li>\n\n\n\n<li><strong>Load Capacity<\/strong>: Able to transport 18 million pounds (or the weight of more than 20 fully loaded 777 airplanes).<\/li>\n\n\n\n<li><strong>March 1963<\/strong> – Fabrication began on the crawler-transporters in Ohio.<\/li>\n\n\n\n<li><strong>Jan. 23, 1965<\/strong> – The crawler moved under its own power for the first time.<\/li>\n\n\n\n<li><strong>Aug. 26, 1967<\/strong> – The first Saturn V rocket was moved to the launch pad for the unmanned Apollo 4 mission.\n\n\n\n<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>May 1, 1979<\/strong> – A crawler transported space shuttle Enterprise, with external tank and two inert solid rocket boosters, to Launch Pad A for fit check.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li><strong>Nov. 16, 2011<\/strong> – Moved Space Launch System’s (SLS) mobile launcher from the park site beside the Vehicle Assembly Building (VAB) to Launch Pad 39B.<\/li>\n\n\n\n<li><strong>June 28, 2019<\/strong> \u2013 CT-2 carried the mobile launcher from the VAB along the crawlerway to Launch Pad 39B for Verification and Validation (V&V) testing of ML and pad systems.<\/li>\n\n\n\n<li><strong>March 17 – April 26, 2022<\/strong> \u2013 CT-2 carried the SLS with the Orion spacecraft atop on the mobile launcher from the VAB to Pad 39B for the Artemis I wet dress rehearsal tests ahead of launch.<\/li>\n\n\n\n<li><strong>Nov. 3 – Dec. 9, 2022<\/strong> \u2013 CT-2 carried SLS with the Orion spacecraft atop on the mobile launcher from the VAB to Pad 39B for the launch of Artemis I, which took place on Nov. 16. CT-2 carried the mobile launcher back to the VAB and later on to a parking location at Kennedy, where modifications and upgrades are being made on both ahead of the Artemis II crewed mission.<\/li>\n\n\n\n<li><strong>March 29, 2023<\/strong> \u2013 Guinness World Records presented a certificate to teams with EGS and Kennedy leadership, officially designating CT-2 as “the heaviest self-powered vehicle.”<\/li>\n<\/ul>\n\n\n<div id=\"\" class=\"hds-featured-link-list bg-spacesuit-white padding-x-2 tablet:padding-x-3 desktop:padding-x-4 padding-y-5 desktop:padding-y-6 hds-module hds-module-full wp-block-nasa-blocks-featured-link-list\">\t<div class=\"grid-container grid-container-block padding-0\">\n\t\t<div class=\"margin-bottom-4\">\n\t\t\t<h2 class=\"heading-22\">\n\t\t\t\tHelpful Resources\t\t\t<\/h2>\n\t\t<\/div>\n\n\t\t\t\t\t<div class=\"grid-row padding-y-2 border-top-1px border-color-carbon-30-important\">\n\t\t\t\t<div class=\"grid-row featured-link-list-row width-full flex-align-center\">\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 tablet:padding-right-3 desktop:padding-right-5\">\n\t\t\t\t\t\t<div class=\"width-full\">\n\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper width-full ratio-1x1 radius-pill overflow-hidden\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/Crawler-Transporter-2.jpg?w=150&h=150&crop=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"NASA's crawler-transporter 2 at NASA's Kennedy Space Center in Florida.\" style=\"transform: scale(1.1); transform-origin: 25% 61%; object-position: 25% 61%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/Crawler-Transporter-2.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/Crawler-Transporter-2.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/Crawler-Transporter-2.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/12\/Crawler-Transporter-2.jpg?resize=200,200 200w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div> \n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8 desktop:grid-col-10 padding-left-3 desktop:padding-left-0\">\n\t\t\t\t\t\t<div class=\"grid-row flex-align-center\">\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<h2 class=\"heading-36 margin-0\">Crawler-Transporters Fact Sheet<\/h2>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<p class=\"p-md margin-0 color-carbon-black\">Learn more and access additional quick facts about NASA's crawler-transporter and crawler-transporter 2.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 display-flex flex-justify-end\">\n\t\t\t\t\t\t<a href=\"https:\/\/www3.nasa.gov\/sites\/default\/files\/atoms\/files\/combined_crawler-transporters_fact_sheet_final.pdf\" target=\"_blank\" aria-label=\"\" rel=\"noopener\">\n                            <svg class=\"hds-featured-link-list-button margin-left-auto margin-right-0\" viewBox=\"0 0 32 32\" fill=\"none\">\n                                <circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path>\n                            <\/svg>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-row padding-y-2 border-top-1px border-color-carbon-30-important\">\n\t\t\t\t<div class=\"grid-row featured-link-list-row width-full flex-align-center\">\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 tablet:padding-right-3 desktop:padding-right-5\">\n\t\t\t\t\t\t<div class=\"width-full\">\n\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper width-full ratio-1x1 radius-pill overflow-hidden\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/581097main_STS-1_Dust-it-Off-mp3-image.gif?w=150&h=150&crop=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"NASA Insignia\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" \/><\/figure>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div> \n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8 desktop:grid-col-10 padding-left-3 desktop:padding-left-0\">\n\t\t\t\t\t\t<div class=\"grid-row flex-align-center\">\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<h2 class=\"heading-36 margin-0\">Crawler Infographic<\/h2>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<p class=\"p-md margin-0 color-carbon-black\">View or download our crawler infographic.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 display-flex flex-justify-end\">\n\t\t\t\t\t\t<a href=\"https:\/\/www3.nasa.gov\/sites\/default\/files\/files\/Crawler-Blueprint-Infographic_v13.pdf\" target=\"_blank\" aria-label=\"\" rel=\"noopener\">\n                            <svg class=\"hds-featured-link-list-button margin-left-auto margin-right-0\" viewBox=\"0 0 32 32\" fill=\"none\">\n                                <circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path>\n                            <\/svg>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t<\/div>\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"NASA's Crawler-Transporters Video Infographic\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/iyudA4h1fo4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Learn about NASA’s crawler-transporters at Kennedy Space Center through this video infographic. The crawler-transporter will carry the agency’s Orion spacecraft atop the Space Launch System rocket to Launch Pad 39B for Artemis I.<\/figcaption><\/figure>\n\n\n<div id=\"\" class=\"hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-topic-cards\">\t\t<div class=\"grid-container grid-container-block-lg padding-x-0\">\n\t\t\t<div class=\"grid-row flex-align-center margin-bottom-3\">\n\t\t\t\t<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n\t\t\t\t\t<div class=\"label color-carbon-60 margin-bottom-2\">Keep Exploring<\/div>\n\t\t\t\t\t<h2 class=\"heading-36 line-height-sm\">Discover More Topics From NASA<\/h2>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row grid-gap-2 hds-topic-cards-wrapper\">\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/artemis\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Artemis<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1536\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?w=1024\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" 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\/2023\/02\/Artemis-I.jpg 5504w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=200,300 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=768,1152 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=683,1024 683w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=1024,1536 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=1365,2048 1365w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=267,400 267w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=400,600 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=600,900 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=800,1200 800w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/Artemis-I.jpg?resize=1333,2000 1333w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Humans In Space<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"368\" height=\"560\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?w=368\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" 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\/2021\/03\/topic-humans-in-space.jpg 368w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?resize=197,300 197w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/03\/topic-humans-in-space.jpg?resize=263,400 263w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/space-launch-system\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Space Launch System (SLS)<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1085\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?w=1536\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" 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\/2022\/08\/we-are-going-1.jpeg 4748w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=300,212 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=768,543 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=1024,724 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=1536,1085 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=2048,1447 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=400,283 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=600,424 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=900,636 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=1200,848 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/we-are-going-1.jpeg?resize=2000,1413 2000w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span><\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>A pair of behemoth machines called crawler-transporters have carried the load of taking rockets and spacecraft to the launch pad for more than 50 years at NASA\u2019s Kennedy Space Center in Florida. Each the size of a baseball infield and powered by locomotive and large electrical power generator engines, the crawler-transporters stand ready to keep [...]<\/p>\n","protected":false},"author":39,"featured_media":288102,"parent":167747,"menu_order":0,"template":"","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":[]},"categories":[2862,3785],"news-tags":[],"internal-terms":[3917,12640],"coauthors":[8382],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"WebPage","headline":"The Crawlers","url":"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/the-crawlers\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/the-crawlers\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/ksc-20180522-crawler.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/ksc-20180522-crawler.jpg"},"articleSection":"NASA Centers & Facilities","author":[{"@type":"Person","name":"Danielle Sempsrott"}],"creator":["Danielle Sempsrott"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Directorates","Exploration Systems Development Mission Directorate","Common Exploration Systems Development Division","Exploration Ground Systems","Kennedy Space Center"],"dateCreated":"2023-04-11T19:45:50Z","datePublished":"2023-04-11T19:45:50Z","dateModified":"2023-09-19T17:37:34Z"},"rendered":"<meta name=\"parsely-title\" content=\"The Crawlers\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/humans-in-space\/exploration-ground-systems\/the-crawlers\/\" \/>\n<meta name=\"parsely-type\" content=\"index\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/ksc-20180522-crawler.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2023-04-11T19:45:50Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Centers & Facilities\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Directorates,Exploration Systems Development Mission Directorate,Common Exploration Systems Development Division,Exploration Ground Systems,Kennedy Space Center\" \/>\n<meta name=\"parsely-author\" content=\"Danielle Sempsrott\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":3,"time_ago":"1 year","featured_image":{"id":288102,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/ksc-20180522-crawler.jpg","title":"ksc-20180522-crawler","alt":"The crawler-transporter 2 is photographed at NASA's Kennedy Space Center in Florida.","caption":"Crawler-transporter 2 (CT-2) moves slowly up the ramp to the surface of Launch Pad 39B for a fit check on May 22, 2018, at NASA's Kennedy Space Center in Florida."},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/288098"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/topic"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/39"}],"version-history":[{"count":11,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/288098\/revisions"}],"predecessor-version":[{"id":612291,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/288098\/revisions\/612291"}],"up":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/167747"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/288102"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=288098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=288098"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=288098"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=288098"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=288098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}