{"id":283610,"date":"2022-11-22T12:44:00","date_gmt":"2022-11-22T17:44:00","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-484160"},"modified":"2023-09-20T15:11:09","modified_gmt":"2023-09-20T19:11:09","slug":"nasa-looks-for-a-new-twist-on-sustainable-aviation","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/aeronautics\/nasa-looks-for-a-new-twist-on-sustainable-aviation\/","title":{"rendered":"NASA Looks for a New Twist on Sustainable Aviation"},"content":{"rendered":"<div id=\"\" class=\"padding-top-5 padding-bottom-3 width-full maxw-full hds-module hds-module-full wp-block-nasa-blocks-article-intro\"><div class=\"width-full maxw-full article-header\"><div class=\"margin-bottom-2 width-full maxw-full\"><p class=\"label carbon-60 margin-0 margin-bottom-3 padding-0\">5 min read<\/p><h1 class=\"display-48 margin-bottom-2\">NASA Looks for a New Twist on Sustainable Aviation<\/h1><\/div><\/div><\/div>\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-fit \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"900\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?w=1200\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"A view of Boeing's SMART vortex generators raised at lower altitude.\" 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\/11\/20221027_152842.jpg 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=300,225 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=768,576 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=1024,768 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=400,300 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=600,450 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?resize=900,675 900w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">This view from inside the Boeing ecoDemonstrator shows the SMART vortex generators raised at lower altitude \u2013 the one in front is triggered by the pilot, the remaining three are activated by the environment.<\/div><div class=\"hds-credits\">Boeing<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>For a team of NASA and industry researchers seeking to make aviation more sustainable, it\u2019s all about the twist.<\/p>\n\n\n\n<p>No, we\u2019re not thinking of Chubby Checker and his signature song and dance. Instead, the focus here is on metal alloys whose molecules literally change shape when exposed to a certain temperature range.<\/p>\n\n\n<div id=\"\" class=\"nasa-gb-align-center padding-y-3 maxw-full width-full display-flex flex-align-center hds-module wp-block-nasa-blocks-blockquote\"><div class=\"grid-container grid-container-block display-flex flex-column flex-justify-center padding-0\">\n\t\t<div class=\"grid-col-12 desktop:display-flex mobile:display-block\">\n\t\t\t<div class=\"blockquote-icon margin-bottom-3\">\n\t\t\t\t<svg class=\"tablet:square-4 square-4 margin-right-3\" version=\"1.1\" aria-hidden=\"true\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" viewBox=\"0 0 3000 3000\" style=\"enable-background:new 0 0 3000 3000;\" xml:space=\"preserve\"> <g> <path d=\"M586.7,1429.7c-10.7,1.5-21.4,2.8-33.9,4.5c6.9-26.6,12.7-50.7,19.5-74.6c32.4-114.1,78.5-222.2,146.8-319.5 c90.2-128.5,202.5-235.3,327.7-329.1c8.4-6.3,16.7-12.6,25.3-19.1c-66.3-105.1-131.5-208.6-197.3-313.1c-3.5,1.2-5.5,1.6-7.2,2.6 C714.4,469,576.1,575.7,456,705.3c-126,135.9-226.2,289.1-303,457.8c-98.8,217.1-151.3,444-147.2,683.3 c1.7,100.5,12.9,199.6,41.1,296.3C93.7,2303,182.2,2433,326.7,2520.1c176.9,106.7,366.8,126.8,563.4,70.5 c150.9-43.2,260.9-138.9,327.2-282.5c33.4-72.5,47.8-149.4,52-228.7c6.5-122.8-14.1-239.5-74.3-348.1 C1074.6,1514.5,832.7,1394.2,586.7,1429.7z\"><\/path><path d=\"M2912.5,1722c-129.9-210.9-320.2-309.4-567.9-296c-22.1,1.2-44,5.1-67.4,7.9c2.2-9.6,4-17.9,6.1-26.2 c37.9-153.6,99.3-296,198.8-420.5c77.8-97.4,167.1-182.9,265.8-258.8c15.6-12,31.3-23.9,47.9-36.5 c-66.2-105.1-131.9-209.2-197.2-312.8c-3.5,1.1-5.1,1.2-6.4,2c-167.2,95.6-316.1,213.7-443.2,358.8 c-105.1,119.9-191.1,252.3-259.5,396.3c-95.5,201-152.1,411.6-159.1,634.8c-3.9,125.5,4.8,249.7,40.1,371 c46.7,160.8,135.7,290.9,280.5,378.7c165.7,100.5,344.8,123,531.2,78.8c172.4-40.8,296.4-143.9,366.3-308.5 c28.5-67.2,40.6-138,44.6-210.5C3000.2,1953.3,2979.9,1831.4,2912.5,1722z\"><\/path><\/g><\/svg>\n\t\t\t<\/div>\n\t\t\t<div class=\"blockquote-content\">\n\t\t\t\t<div class=\"margin-bottom-4\">\n\t\t\t\t\t<h2 class=\"font-weight-extralight line-height-sm margin-top-0 section-heading-sm\"><span class=\"section-heading-sm\">It doesn\u2019t bend out of shape. It doesn\u2019t extend. It doesn\u2019t shrink. It twists on its axis.<\/span><\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"display-flex\">\n\t\t\t\t\t<div class=\"blockquote-image hds-cover-wrapper margin-right-3\"><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/othmane-benafan.jpg?w=150&h=150&crop=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"othmane benafan\" 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\/04\/othmane-benafan.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/othmane-benafan.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/othmane-benafan.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/04\/othmane-benafan.jpg?resize=200,200 200w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure><\/div>\n\t\t\t\t\t<div class=\"grid-col-11\">\n\t\t\t\t\t\t<p class=\"blockquote-credit-name line-height-sm margin-0\">othmane benafan<\/p>\n\t\t\t\t\t\t<p class=\"blockquote-credit-title line-height-sm padding-0 margin-0\">Materials Research Engineer at NASA's Glenn Research Center in Cleveland<\/p>\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>NASA and The Boeing Co. have partnered to look at how using torque from that twisting can lower or raise a part that currently doesn\u2019t move, namely an airplane\u2019s vortex generators (VG) \u2013 small, flat pieces of metal most often seen protruding like fins from the surface of an airplane\u2019s wing.<\/p>\n\n\n\n<p>The intended result: an ability to decrease drag in flight that could reduce aviation\u2019s <a href=\"https:\/\/www.nasa.gov\/aeroresearch\/sustainable-aviation\">environmental impact<\/a> and save airlines money.<\/p>\n\n\n\n<p>NASA is working with the aerospace company to test the idea on their 2022 Boeing ecoDemonstrator aircraft \u2013 a 777-200ER. The tests are part of the Boeing ecoDemonstrator program, which takes promising technologies out of laboratories and puts them through rigorous testing in a real operational environment.<\/p>\n\n\n\n<p>Flight tests began in late October and will continue for several more weeks.<\/p>\n\n\n\n<p>\u201cSo far the VGs are working wonderfully, and I can\u2019t wait to see the data and compare it to our lab testing,\u201d Benafan said after the first flight test.<\/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-fit \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?w=1200\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"A row of SMART VGs.\" 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\/11\/cpl-8733.jpg 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8733.jpg?resize=900,600 900w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">A row of SMART VGs on board the Boeing ecoDemonstrator first undergoing ground tests before later taking to the air.<\/div><div class=\"hds-credits\">Boeing<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>VG 101<\/strong><\/h2>\n\n\n\n<p>There\u2019s nothing new about the VGs themselves. They were first widely used on Boeing\u2019s 707 beginning back in the late 1950s.<\/p>\n\n\n\n<p>In what may seem counterintuitive, these VGs disturb the flow of air streaming over the aircraft. This turbulence mixes the layers of air immediately at and above the surface, causing more airflow to \u201cstick\u201d to the wing.<\/p>\n\n\n\n<p>More lift is the result, which is a welcome feature during high-lift phases of a flight \u2013 takeoff, climb, approach, and landing, to be specific.<\/p>\n\n\n\n<p>But once the airplane reaches its cruising altitude, that extra lift isn\u2019t needed. That\u2019s when those small fins become, well, a drag.<\/p>\n\n\n\n<p>Until now, VGs have just been simple wedges bolted to the wing\u2019s surface, passively doing their job \u2013 the high-lift benefits when needed outweighing the drag penalty at cruise.<\/p>\n\n\n\n<p>\u201cSo, what if we could use this shapeshifting alloy to fold them down flat when you really don\u2019t need them?\u201d said Dale Hopkins, deputy manager of NASA\u2019s <a href=\"https:\/\/www.nasa.gov\/aeroresearch\/programs\/tacp\/ttt\">Transformational Tools and Technologies<\/a> project.<\/p>\n\n\n\n<p>That capability would reduce overall drag on the airplane, meaning the engines wouldn\u2019t have to work as hard to keep the airplane flying, saving fuel and releasing fewer emissions.<\/p>\n\n\n\n<p>\u201cThat\u2019s what our research is about,\u201d Hopkins said.<\/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-fit \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1200\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?w=900\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"A view of Boeing's four SMART vortex generators fully stowed during higher altitudes.\" 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\/11\/20221024_152111.jpg 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?resize=225,300 225w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?resize=768,1024 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?resize=300,400 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?resize=450,600 450w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221024_152111.jpg?resize=675,900 675w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">A view from inside the Boeing ecoDemonstrator of the four SMART vortex generators fully stowed at higher altitude \u2013 more than 30,000 feet.<\/div><div class=\"hds-credits\">Boeing<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>SMART VG<\/strong><\/h2>\n\n\n\n<p>Officially the research activity is called Shape Memory Alloy Reconfigurable Technology Vortex Generators, or SMART VG.<\/p>\n\n\n\n<p>The heart of the technology is a pair of shape memory alloys \u2013 as described in this <a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/shape-memory-alloys-activity_0.pdf?emrc=3ff43c\">STEM learning activity<\/a> \u2014 that Benafan and his colleagues developed, manufactured, and tested in a laboratory at Glenn for the specific purpose of being used with the VGs.<\/p>\n\n\n\n<p>This involved finding just the <a href=\"https:\/\/shapememory.grc.nasa.gov\/\" rel=\"noopener\">right recipe of alloys<\/a> to mix that would change shape within a certain temperature range, could be fashioned into a part small enough to fit within the allowable space, and still be able to generate enough torque to move the VG.<\/p>\n\n\n\n<p>\u201cWe\u2019ve worked with Boeing on this idea from the start. Given some basics of the device\u2019s geometry, the temperatures, etc., we designed the alloys to match those requirements,\u201d Benafan said.<\/p>\n\n\n\n<p>Boeing then tested the alloys and assembled the VG hardware, which was designed with the help of the German firm Deharde.<\/p>\n\n\n\n<p>The shape memory alloy was built into a hinge added to the VG. One end of the alloy is fixed in place while the other end of the alloy is attached to the hinge. As the alloy twists, the end attached to the hinge causes the fin to lower or raise.<\/p>\n\n\n\n<p>\u201cOn top of all that it had to be durable and reliable enough to do its job exactly the same way each time, thousands of times, over the course of many years,\u201d Hopkins said.<\/p>\n\n\n\n<p>An initial concept was flight tested on the Boeing ecoDemonstrator <a href=\"https:\/\/www.nasa.gov\/feature\/glenn\/2019\/memory-metals-are-shaping-the-evolution-of-aviation\">used in 2019<\/a>.<\/p>\n\n\n\n<p>The VGs tested stayed up during takeoff and initial climb, and then folded down as the airplane ascended through the colder air at 30,000 feet. They then returned to their extended state when the airplane descended for landing.<\/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-fit \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?w=1200\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Cameras set up inside the aircraft to capture the performance of the SMART VGs.\" 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\/11\/cpl-8705.jpg 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/cpl-8705.jpg?resize=900,600 900w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Cameras set up inside the aircraft to capture the performance of the SMART VGs.<\/div><div class=\"hds-credits\">Boeing<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>With the basic idea successfully demonstrated, the SMART VG team of aeronautical innovators expanded on the technology\u2019s capabilities for the 2022 campaign.<\/p>\n\n\n\n<p>For this second generation, the team designed two different setups: one in which the VG folds down on its own as before, while the second design incorporated a heating element so the VG could be triggered to move on command from the cockpit.<\/p>\n\n\n\n<p>This new capability will come in handy should an aircraft need to operate out of a cold weather airport where the temperature might be low enough that without the heaters the VGs would fold down.<\/p>\n\n\n\n<p>Although flight tests on the Boeing ecoDemonstrator are going well, the SMART VG team is waiting to declare total victory until they examine all their data and compare their results with their pre-test predictions and simulations.<\/p>\n\n\n\n<p>But optimism abounds.<\/p>\n\n\n\n<p>It might not be too many years from now that you could be on a flight, look out your window, and see a set of VG fins on the wing folding down as you climb. And when that happens, perhaps you\u2019ll hear a certain tune playing in your head\u2026<\/p>\n\n\n\n<p>\u201cCome on baby, let\u2019s do the twist\u2026\u201d<\/p>\n\n\n<div id=\"\" class=\"hds-about-the-author nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-6 hds-module hds-module-full wp-block-nasa-blocks-about-the-author\"><div class=\"grid-row grid-container maxw-widescreen padding-x-0 border-top-1px border-color-carbon-black padding-top-3\"><div class=\"margin-bottom-4\"><h3 class=\"heading-14\">About the Author<\/h3><\/div><\/div><div class=\"grid-row grid-container padding-x-0 maxw-widescreen\"><div class=\"grid-col-12 desktop:grid-col-6 desktop:padding-right-9\"><div class=\"grid-row\"><div class=\"hds-author-thumbnail mobile:circle-6 mobile:maxw-6 circle-card maxw-card thumbnail margin-right-2 desktop:margin-right-5\"><img decoding=\"async\" width=\"10rem\" height=\"10rem\" loading=\"lazy\" fetchpriority=\"low\" class=\"avatar avatar-300 photo medium\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/06\/cropped-banke-press-300x300.jpg\" alt=\"Jim Banke\"><\/div><div class=\"grid-col\"><div class=\"margin-bottom-2\"><h2 class=\"heading-29 line-height-sm\">Jim Banke<\/h2><\/div><div class=\"heading-12 p-md\">Managing Editor\/Senior Writer<\/div><div class=\"padding-y-2\"><\/div><\/div><\/div><\/div><div class=\"desktop:grid-col-6 desktop:padding-right-9\"><p class=\"margin-top-0\">Jim Banke is a veteran aviation and aerospace communicator with more than 35 years of experience as a writer, producer, consultant, and project manager based at Cape Canaveral, Florida. He is part of NASA Aeronautics' Strategic Communications Team and is Managing Editor for the Aeronautics topic on the NASA website.<\/p><\/div><\/div><\/div>\n\n<div id=\"\" class=\"hds-social-media grid-container grid-container-block nasa-gb-align- width-full maxw-full margin-y-0 padding-y-5 padding-x-3 desktop:padding-x-0 font-weight-bold hds-module wp-block-nasa-blocks-social-media-links\">\t\t<div class=\"display-flex flex-align-center padding-y-1\" id=\"social-facebook\">\n\t\t\t<div class=\"circle-4 minw-4 display-flex flex-align-center flex-justify-center\" style=\"background-color: #4267B2;\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" aria-labelledby=\"facebookIconTitle\"><title id=\"facebookIconTitle\">Facebook logo<\/title><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg>\t\t\t<\/div>\n\t\t\t<div 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rel=\"noopener\">@NASA<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 hds-module hds-module-full wp-block-nasa-blocks-related-articles\">\t\t<section class=\"hds-related-articles padding-x-0 padding-y-3 desktop:padding-top-7 desktop:padding-bottom-9\">\n\t\t\t<div class=\"w-100 grid-row grid-container maxw-widescreen padding-0 text-align-left\">\n\t\t\t\t<div class=\"margin-bottom-4\"><h2 style=\"max-width: 100%;\" class=\"width-full w-full maxw-full\">Explore More<\/h2><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/aeronautics\/research-model-increases-accuracy\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"192\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?w=300\" class=\"attachment-medium size-medium\" 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\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png 3953w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=300,192 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=768,491 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=1024,655 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=1536,983 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=2048,1310 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=400,256 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=600,384 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=900,576 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=1200,768 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/20230608-144923-nasa-ldg-full-model-ls.png?resize=2000,1280 2000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">4 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">Globetrotting NASA Research Model Increases Accuracy<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t17 hours ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/newsletters\/aerospace-frontiers\/nasa-glenn-visits-duluth-for-air-and-aviation-expo-steam-festival\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?w=300\" class=\"attachment-medium size-medium\" 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\/2024\/06\/grc-2024-cn-00014.jpg 4032w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=300,225 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=768,576 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=1024,768 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=1536,1152 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=2048,1536 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=400,300 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=600,450 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=900,675 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=1200,900 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-cn-00014.jpg?resize=2000,1500 2000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">1 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">NASA Glenn Visits Duluth for Air and Aviation Expo, STEAM Festival\u00a0\u00a0<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t6 days ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/centers-and-facilities\/glenn\/tech-day-at-nasa-attracts-middle-school-students\/\" class=\"color-carbon-black\">\n\t\t\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?w=300\" class=\"attachment-medium size-medium\" 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\/2024\/06\/grc-2024-c-05199.jpg 4128w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=2048,1365 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=1200,800 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2024\/06\/grc-2024-c-05199.jpg?resize=2000,1333 2000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"padding-right-0 desktop:padding-right-10\">\n\t\t\t\t\t\t\t\t<div class=\"subheading margin-bottom-1\">1 min read<\/div>\n\t\t\t\t\t\t\t\t<div class=\"margin-bottom-1\"><h3 class=\"related-article-title\">TECH Day at NASA Attracts Middle School Students\u00a0<\/h3><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\">\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"\">\n\t\t\t\t\t\t\t\t\t\t6 days ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<\/div>\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\/nasa-missions\/\" 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>Missions<\/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=\"864\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?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\/jsc2022e046413_orig.jpg 3840w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1536,864 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=2048,1152 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=900,506 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=1200,675 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/08\/jsc2022e046413_orig.jpg?resize=2000,1125 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=\"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:\/\/science.nasa.gov\/solar-system\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\">\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<h3 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>Solar System Exploration<\/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<\/h3>\n\t\t\t\t\t\t\t<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Why Oceans Matter The story of oceans is the story of life. Life as we know it requires three ingredients:…<\/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 decoding=\"async\" loading=\"lazy\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/pia06890-our-solar-system-banner-1920x640-1.jpg\" ><\/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\/history\/explore-nasas-history\/\" 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>Explore NASA’s History<\/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=\"1919\" height=\"1878\" src=\"https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1919&h=1878&fit=clip&crop=faces%2Cfocalpoint\" 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:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1919&h=1878&fit=crop&crop=faces%2Cfocalpoint 1919w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=300&h=294&fit=crop&crop=faces%2Cfocalpoint 300w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=768&h=752&fit=crop&crop=faces%2Cfocalpoint 768w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1024&h=1002&fit=crop&crop=faces%2Cfocalpoint 1024w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1536&h=1503&fit=crop&crop=faces%2Cfocalpoint 1536w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=50&h=49&fit=crop&crop=faces%2Cfocalpoint 50w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=400&h=391&fit=crop&crop=faces%2Cfocalpoint 400w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=600&h=587&fit=crop&crop=faces%2Cfocalpoint 600w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=900&h=881&fit=crop&crop=faces%2Cfocalpoint 900w, https:\/\/images-assets.nasa.gov\/image\/as17-134-20476\/as17-134-20476~large.jpg?w=1200&h=1174&fit=crop&crop=faces%2Cfocalpoint 1200w\" sizes=\"(max-width: 1919px) 100vw, 1919px\" \/><\/figure>\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>\n\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 article_a hds-module hds-module-full wp-block-nasa-blocks-credits-and-details\">\n<section class=\"padding-x-0 padding-top-5 padding-bottom-2 desktop:padding-top-7 desktop:padding-bottom-9\">\n\t<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n\t\t<div class=\"grid-col-12 desktop:grid-col-2 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Share<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"padding-bottom-2\">\n\t\t\t\t\t<ul class=\"social-icons social-icons-round\">\n\t\t\t\t\t\t<li class=\"social-icon social-icon-x\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/x.com\/intent\/tweet?via=NASA&text=NASA%20Looks%20for%20a%20New%20Twist%20on%20Sustainable%20Aviation&url=https%3A%2F%2Fwww.nasa.gov%2Faeronautics%2Fnasa-looks-for-a-new-twist-on-sustainable-aviation%2F\" aria-label=\"Share on X.\">\n\t\t\t\t\t\t\t\t<svg width=\"1200\" height=\"1227\" viewBox=\"0 0 1200 1227\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M714.163 519.284L1160.89 0H1055.03L667.137 450.887L357.328 0H0L468.492 681.821L0 1226.37H105.866L515.491 750.218L842.672 1226.37H1200L714.137 519.284H714.163ZM569.165 687.828L521.697 619.934L144.011 79.6944H306.615L611.412 515.685L658.88 583.579L1055.08 1150.3H892.476L569.165 687.854V687.828Z\" fill=\"white\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-facebook\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fwww.nasa.gov%2Faeronautics%2Fnasa-looks-for-a-new-twist-on-sustainable-aviation%2F\" aria-label=\"Share on Facebook.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-linkedin\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&url=https%3A%2F%2Fwww.nasa.gov%2Faeronautics%2Fnasa-looks-for-a-new-twist-on-sustainable-aviation%2F\" aria-label=\"Share on LinkedIn.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-rss\">\n\t\t\t\t\t\t\t<a href=\"\/feed\/\" aria-label=\"Subscribe to RSS feed.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 800 800\" aria-hidden=\"true\"><path d=\"M493 652H392c0-134-111-244-244-244V307c189 0 345 156 345 345zm71 0c0-228-188-416-416-416V132c285 0 520 235 520 520z\"\/><circle cx=\"219\" cy=\"581\" r=\"71\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Details<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row margin-bottom-3\">\n\t\t\t\t\t<div class=\"grid-col-4\">\n\t\t\t\t\t\t<div class=\"subheading\">Last Updated<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8\">Sep 20, 2023<\/div>\n\t\t\t\t<\/div>\n\t\t\t<div class=\"grid-row margin-bottom-3\"><div class=\"grid-col-4\"><div class=\"subheading\">Editor<\/div><\/div><div class=\"grid-col-8\">Lillian Gipson<\/div><\/div><div class=\"grid-row margin-bottom-3\"><div class=\"grid-col-4\"><div class=\"subheading\">Contact<\/div><\/div><div class=\"grid-col-8\"><div class=\"margin-bottom-3\"><div>Jim Banke<\/div><div><a href=\"mailto:jim.banke@nasa.gov\">jim.banke@nasa.gov<\/a><\/div><\/div><\/div><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\"><div class=\"padding-top-3 border-top-1px border-color-carbon-black \"><div class=\"margin-bottom-2\"><h2 class=\"heading-14\">Related Terms<\/h2><\/div><ul class=\"article-tags\"><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics\/\">Aeronautics<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/technology\/\">Aeronautics Technology<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/glenn\/\">Glenn Research Center<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics\/green-aero-tech\/\">Green Aviation Tech<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/tacp\/ttt\/\">Transformational Tools Technologies<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/nasa-directorates\/armd\/tacp\/\">Transformative Aeronautics Concepts Program<\/a><\/li><\/ul><\/div><\/div>\n\t<\/div>\n<\/section>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>For a team of NASA and industry researchers seeking to make aviation more sustainable, it\u2019s all about the twist. No, we\u2019re not thinking of Chubby Checker and his signature song and dance. Instead, the focus here is on metal alloys whose molecules literally change shape when exposed to a certain temperature range. NASA and The […]<\/p>\n","protected":false},"author":47,"featured_media":286889,"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":"48","nasa_hds_core_meta_article_contacts":["47"],"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":[2660,10843,2856,2825,10538,3308],"news-tags":[],"internal-terms":[10618,10924],"coauthors":[8588],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"NASA Looks for a New Twist on Sustainable Aviation","url":"https:\/\/www.nasa.gov\/aeronautics\/nasa-looks-for-a-new-twist-on-sustainable-aviation\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/aeronautics\/nasa-looks-for-a-new-twist-on-sustainable-aviation\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg"},"articleSection":"Aeronautics","author":[{"@type":"Person","name":"Jim Banke"}],"creator":["Jim Banke"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Directorates","Aeronautics Research Mission Directorate","Transformative Aeronautics Concepts Program","Aeronautics","Aeronautics Technology","Glenn Research Center","Green Aviation Tech","Transformational Tools Technologies"],"dateCreated":"2022-11-22T17:44:00Z","datePublished":"2022-11-22T17:44:00Z","dateModified":"2023-09-20T19:11:09Z"},"rendered":"<meta name=\"parsely-title\" content=\"NASA Looks for a New Twist on Sustainable Aviation\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/aeronautics\/nasa-looks-for-a-new-twist-on-sustainable-aviation\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2022-11-22T17:44:00Z\" \/>\n<meta name=\"parsely-section\" content=\"Aeronautics\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Directorates,Aeronautics Research Mission Directorate,Transformative Aeronautics Concepts Program,Aeronautics,Aeronautics Technology,Glenn Research Center,Green Aviation Tech,Transformational Tools Technologies\" \/>\n<meta name=\"parsely-author\" content=\"Jim Banke\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":5,"time_ago":"2 years","featured_image":{"id":286889,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/11\/20221027_152842.jpg","title":"20221027_152842","alt":"A view of Boeing's SMART vortex generators raised at lower altitude.","caption":"This view from inside the Boeing ecoDemonstrator shows the SMART vortex generators raised at lower altitude \u2013 the one in front is triggered by the pilot, the remaining three are activated by the environment."},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/283610"}],"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\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=283610"}],"version-history":[{"count":7,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/283610\/revisions"}],"predecessor-version":[{"id":513388,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/283610\/revisions\/513388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/286889"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=283610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=283610"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=283610"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=283610"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=283610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}