{"id":553382,"date":"2023-10-26T03:08:23","date_gmt":"2023-10-26T07:08:23","guid":{"rendered":"https:\/\/www.nasa.gov\/?post_type=topic&p=553382"},"modified":"2024-01-10T14:46:07","modified_gmt":"2024-01-10T19:46:07","slug":"hazard-gravity-fields","status":"publish","type":"topic","link":"https:\/\/www.nasa.gov\/hrp\/hazard-gravity-fields\/","title":{"rendered":"Hazard: Gravity Fields"},"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-dark 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>Human Spaceflight Hazards<\/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 \"><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\/hrp\/hazards\">Hazards Overview<\/a><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/hrp\/hazard-space-radiation\">Space Radiation<\/a><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/hrp\/hazard-isolation-and-confinement\/\">Isolation & Confinement<\/a><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/hrp\/hazard-distance-from-earth\/\">Distance from Earth<\/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>More<\/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\/hrp\/hazard-gravity-fields\/\">Gravity Fields<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/hrp\/hazard-hostile-closed-environments\/\">Hostile\/Closed Environments<\/a><\/li><\/ul><\/ul><\/nav><\/div><\/div><\/div><\/div><\/div>\n\n<div id=\"\" class=\"nasa-gb-align-full maxw-full width-full padding-0 hds-module hds-module-full wp-block-nasa-blocks-page-intro\">\n\t<div class=\"padding-0 bg-spacesuit-white wp-block-nasa-blocks-page-intro\">\n\t\t\t<div class=\"hds-page-intro hds-page-intro-banner width-full maxw-full padding-0 hds-cover-wrapper minh-tablet\">\n\t\t<div class=\"hds-foreground-wrapper display-flex\">\n\t\t\t<div class=\"grid-row grid-container grid-container-block margin-top-auto margin-bottom-auto width-full maxw-desktop-lg padding-top-9 padding-x-3 z-400\">\n\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6 desktop:padding-right-4 margin-bottom-3 desktop:margin-bottom-0\">\n\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t<h1 class=\"page-heading-md line-height-sm color-spacesuit-white-important\">\n\t\t\t\t\t\t\tHazard: Gravity Fields\t\t\t\t\t\t<\/h1>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<p class=\"p-lg color-carbon-30-important\">\n\t\t\t\t\t\t<strong><strong>Floating weightlessly within a spacecraft can lead to dizziness, bone and muscle loss, vision issues, and more. Astronauts may also need time to adjust to new gravity fields after landing on the Moon or Mars before they conduct mission-critical tasks. Developing strategies that enable crew members to adapt quickly to different gravitational fields will be key to mission success.<\/strong><\/strong>\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6 desktop:padding-right-4 margin-bottom-3 desktop:margin-bottom-0\">\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"skrim-overlay skrim-left mobile-skrim-top z-200\"><\/div>\n\t\t<figure class=\"hds-media-background  \"><img fetchpriority=\"high\" decoding=\"async\" width=\"2048\" height=\"1334\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?w=2048\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Christina Koch microgravity.\" style=\"transform: scale(1); transform-origin: 3% 40%; object-position: 3% 40%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png 5700w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=300,195 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=768,500 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=1024,667 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=1536,1000 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=2048,1334 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=400,260 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=600,391 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=900,586 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=1200,781 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/christina-koch-water.png?resize=2000,1302 2000w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" loading=\"eager\" \/><\/figure>\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\n\n<p>Astronauts will encounter three different gravity fields on a Mars mission. On the six-month trek between the planets, crews will be weightless. While living and working on Mars, crews will be in approximately one-third of Earth\u2019s gravity. Finally, upon returning home, crews will have to readapt to Earth\u2019s gravity.<\/p>\n\n\n\n<p>Switching from one gravity field to another is trickier than it sounds. The transition affects spatial orientation, head-eye and hand-eye coordination, balance, and locomotion, with some crew members experiencing space motion sickness.<\/p>\n\n\n\n<p>Landing a spacecraft on Mars could be challenging as astronauts adjust to the gravity field of another celestial body. When shifting from weightlessness to gravity, astronauts may even experience lightheadedness and fainting.<\/p>\n\n\n\n<p>Without the continuous load of Earth\u2019s gravity, weight-bearing bones lose on average <a href=\"https:\/\/humanresearchroadmap.nasa.gov\/Evidence\/reports\/Fracture.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">1% to 1.5%<\/a> of mineral density per month during spaceflight. Water and other fluids in the body shift upward to the head, which may put pressure on the eyes and cause vision problems. If preventive measures are not implemented, crews may experience an increased risk of developing kidney stones due to dehydration and increased excretion of calcium from their bones. <\/p>\n\n\n\n<p>Learn more about how NASA studies the effects of gravity transitions on the human body:<\/p>\n\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=\"Hazards of Human Spaceflight | Hazard 4: Gravity Fields\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/f3-96ZbY5NA?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><\/figure>\n\n\n<div id=\"\" class=\"hds-card-grid padding-top-7 padding-bottom-3 padding-x-0 hds-module hds-module-full wp-block-nasa-blocks-card-grid\">\t\t\t<div class=\"hds-card-grid-header grid-container grid-container-block\">\n\t\t\t\t<div class=\"grid-row flex-align-start margin-bottom-5\">\n\t\t\t\t\t<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n\t\t\t\t\t\t<div class=\"margin-bottom-1\">\n\t\t\t\t\t\t\t<h2 class=\"section-heading-sm line-height-sm\">Related Articles<\/h2>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"desktop:grid-col display-flex flex-align-center desktop:flex-justify-end\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row grid-gap-2\"><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"hds-card-grid-cards grid-container grid-container-block\">\n\t\t\t\t<div class=\"hds-cards-included grid-row\">\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/new-tests-evaluate-mission-readiness-of-astronauts-upon-landing\/\" class=\"hds-card-article-graphical hds-card-article hds-card margin-bottom-4 desktop:margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-foreground-wrapper z-300 display-flex flex-direction-column flex-align-end flex-justify-end\"><div class=\"hds-card-content display-flex flex-column height-full padding-3\"><span class=\"display-flex flex-align-center margin-right-2\"><svg class=\"square-2 margin-right-1 color-spacesuit-white-important\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><path d=\"M8 0C3.5 0-.1 3.7 0 8.2.1 12.5 3.6 16 8 16s8-3.6 8-8c0-4.5-3.6-8-8-8zm0 15.2C4 15.2.8 12 .8 8S4 .8 8 .8c3.9 0 7.2 3.2 7.2 7.1 0 4-3.2 7.3-7.2 7.3z\"\/><path d=\"M5.6 12 8 9.6l2.4 2.4V4H5.6v8z\"\/><\/svg><span class=\"label color-spacesuit-white-important\">Article<\/span><\/span><div class=\"width-full margin-top-auto\"><div class=\"label margin-bottom-2 color-spacesuit-white\">6 min read<\/div><div class=\"margin-bottom-0\"><h3 class=\"heading-18 line-height-lg color-spacesuit-white\">New Tests Evaluate Mission Readiness of Astronauts Upon Landing<\/h3><\/div><\/div><\/div><\/div><div class=\"hds-card-thumbnail hds-card-thumbnail-hover-grow\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-column z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?w=1024\" class=\"attachment-large size-large\" 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\/04\/nasa-astronaut-obstacle-course-1.jpg 2000w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=1024,682 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/04\/nasa-astronaut-obstacle-course-1.jpg?resize=1200,800 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/missions\/station\/astronauts-spines-under-scrutiny\/\" class=\"hds-card-article-graphical hds-card-article hds-card margin-bottom-4 desktop:margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-foreground-wrapper z-300 display-flex flex-direction-column flex-align-end flex-justify-end\"><div class=\"hds-card-content display-flex flex-column height-full padding-3\"><span class=\"display-flex flex-align-center margin-right-2\"><svg class=\"square-2 margin-right-1 color-spacesuit-white-important\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><path d=\"M8 0C3.5 0-.1 3.7 0 8.2.1 12.5 3.6 16 8 16s8-3.6 8-8c0-4.5-3.6-8-8-8zm0 15.2C4 15.2.8 12 .8 8S4 .8 8 .8c3.9 0 7.2 3.2 7.2 7.1 0 4-3.2 7.3-7.2 7.3z\"\/><path d=\"M5.6 12 8 9.6l2.4 2.4V4H5.6v8z\"\/><\/svg><span class=\"label color-spacesuit-white-important\">Article<\/span><\/span><div class=\"width-full margin-top-auto\"><div class=\"label margin-bottom-2 color-spacesuit-white\">3 min read<\/div><div class=\"margin-bottom-0\"><h3 class=\"heading-18 line-height-lg color-spacesuit-white\">Astronauts\u2019 Spines Under Scrutiny<\/h3><\/div><\/div><\/div><\/div><div class=\"hds-card-thumbnail hds-card-thumbnail-hover-grow\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-column z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?w=1024\" class=\"attachment-large size-large\" 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\/05\/kate_rubbins_space_station_main.jpg 1732w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=1024,682 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=1536,1023 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/05\/kate_rubbins_space_station_main.jpg?resize=1200,800 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/humans-in-space\/one-small-step-without-ever-leaving-bed\/\" class=\"hds-card-article-graphical hds-card-article hds-card margin-bottom-4 desktop:margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-foreground-wrapper z-300 display-flex flex-direction-column flex-align-end flex-justify-end\"><div class=\"hds-card-content display-flex flex-column height-full padding-3\"><span class=\"display-flex flex-align-center margin-right-2\"><svg class=\"square-2 margin-right-1 color-spacesuit-white-important\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><path d=\"M8 0C3.5 0-.1 3.7 0 8.2.1 12.5 3.6 16 8 16s8-3.6 8-8c0-4.5-3.6-8-8-8zm0 15.2C4 15.2.8 12 .8 8S4 .8 8 .8c3.9 0 7.2 3.2 7.2 7.1 0 4-3.2 7.3-7.2 7.3z\"\/><path d=\"M5.6 12 8 9.6l2.4 2.4V4H5.6v8z\"\/><\/svg><span class=\"label color-spacesuit-white-important\">Article<\/span><\/span><div class=\"width-full margin-top-auto\"><div class=\"label margin-bottom-2 color-spacesuit-white\">5 min read<\/div><div class=\"margin-bottom-0\"><h3 class=\"heading-18 line-height-lg color-spacesuit-white\">One Small Step \u2026 Without Ever Leaving Bed<\/h3><\/div><\/div><\/div><\/div><div class=\"hds-card-thumbnail hds-card-thumbnail-hover-grow\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-column z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?w=1024\" class=\"attachment-large size-large\" 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\/2019\/06\/dlrcentrifuge2.jpg 5292w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=2048,1365 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=1200,800 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/06\/dlrcentrifuge2.jpg?resize=2000,1333 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/humans-in-space\/nasa-fluid-shifts-study-advances-journey-to-mars\/\" class=\"hds-card-article-graphical hds-card-article hds-card margin-bottom-4 desktop:margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-foreground-wrapper z-300 display-flex flex-direction-column flex-align-end flex-justify-end\"><div class=\"hds-card-content display-flex flex-column height-full padding-3\"><span class=\"display-flex flex-align-center margin-right-2\"><svg class=\"square-2 margin-right-1 color-spacesuit-white-important\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><path d=\"M8 0C3.5 0-.1 3.7 0 8.2.1 12.5 3.6 16 8 16s8-3.6 8-8c0-4.5-3.6-8-8-8zm0 15.2C4 15.2.8 12 .8 8S4 .8 8 .8c3.9 0 7.2 3.2 7.2 7.1 0 4-3.2 7.3-7.2 7.3z\"\/><path d=\"M5.6 12 8 9.6l2.4 2.4V4H5.6v8z\"\/><\/svg><span class=\"label color-spacesuit-white-important\">Article<\/span><\/span><div class=\"width-full margin-top-auto\"><div class=\"label margin-bottom-2 color-spacesuit-white\">5 min read<\/div><div class=\"margin-bottom-0\"><h3 class=\"heading-18 line-height-lg color-spacesuit-white\">NASA Fluid Shifts Study Advances Journey to Mars<\/h3><\/div><\/div><\/div><\/div><div class=\"hds-card-thumbnail hds-card-thumbnail-hover-grow\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-column z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"482\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/07\/iss037e025931_0.jpg?w=320\" class=\"attachment-large size-large\" 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\/2015\/07\/iss037e025931_0.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/07\/iss037e025931_0.jpg?resize=199,300 199w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2015\/07\/iss037e025931_0.jpg?resize=266,400 266w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/figure><\/div><\/div><\/a>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t<\/div>\n\n<div id=\"\" class=\"hds-card-grid padding-top-7 padding-bottom-3 padding-x-0 hds-module hds-module-full wp-block-nasa-blocks-card-grid\">\t\t\t<div class=\"hds-card-grid-header grid-container grid-container-block\">\n\t\t\t\t<div class=\"grid-row flex-align-start margin-bottom-5\">\n\t\t\t\t\t<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n\t\t\t\t\t\t<div class=\"margin-bottom-1\">\n\t\t\t\t\t\t\t<h2 class=\"section-heading-sm line-height-sm\">Gravity Research and Training Platforms<\/h2>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"desktop:grid-col display-flex flex-align-center desktop:flex-justify-end\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row grid-gap-2\"><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"hds-card-grid-cards grid-container grid-container-block\">\n\t\t\t\t<div class=\"hds-cards-included grid-row\">\n\t\t\t\t\t<div class=\"hds-card-custom hds-card color-carbon-black display-flex flex-column margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-card-thumbnail hds-card-hover-zoom-image margin-bottom-2 bg-carbon-black\"><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?w=1024\" class=\"attachment-large size-large\" 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\/2016\/11\/envihab.jpg 3000w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=300,150 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=768,384 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=1024,512 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=1536,768 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=2048,1024 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=400,200 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=600,300 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=900,450 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=1200,600 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/11\/envihab.jpg?resize=2000,1000 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><div class=\"padding-right-0\"><div class=\"margin-bottom-1\"><h3 class=\"heading-18\">:envihab<\/h3><\/div><p class=\"margin-top-0 line-height-lg\">Operated by the German Space Agency (DLR), this research facility allows NASA researchers to study how low gravity\u2014simulated by continuous bed rest with the head tilted down\u2014 affects the eyes and the brain.<\/p><div class=\"margin-top-2\"><a href=\"https:\/\/www.nasa.gov\/mission\/envihab\/\" target=\"_self\" class=\"button-primary button-primary-md link-external-0\"><span role=\"textbox\" aria-multiline=\"true\" aria-label=\"Write button text here\" class=\"line-height-alt-1\" style=\"white-space: pre-wrap; min-width: 1px;\">Learn About :envihab<\/span><svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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><\/a><\/div><\/div><\/div><\/div><div class=\"hds-card-custom hds-card color-carbon-black display-flex flex-column margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-card-thumbnail hds-card-hover-zoom-image margin-bottom-2 bg-carbon-black\"><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?w=1024\" class=\"attachment-large size-large\" alt=\"astronaut training in NBL\" style=\"transform: scale(1.2); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg 3000w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=300,225 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=768,576 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=1024,768 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=1536,1152 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=2048,1536 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=400,300 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=600,450 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=900,675 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=1200,900 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/540830main-mod-nbl1-35.jpg?resize=2000,1500 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><div class=\"padding-right-0\"><div class=\"margin-bottom-1\"><h3 class=\"heading-18\">Neutral Buoyancy Laboratory<\/h3><\/div><p class=\"margin-top-0 line-height-lg\">A 6.2-million-gallon pool at the NASA Johnson Space Center in Houston allows researchers and astronaut trainers to manipulate buoyancy to simulate partial gravity.<\/p><div class=\"margin-top-2\"><a href=\"https:\/\/www.nasa.gov\/johnson\/neutral-buoyancy-laboratory\/\" target=\"_self\" class=\"button-primary button-primary-md link-external-0\"><span role=\"textbox\" aria-multiline=\"true\" aria-label=\"Write button text here\" class=\"line-height-alt-1\" style=\"white-space: pre-wrap; min-width: 1px;\">Discover the Neutral Buoyancy Laboratory<\/span><svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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><\/a><\/div><\/div><\/div><\/div><div class=\"hds-card-custom hds-card color-carbon-black display-flex flex-column margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-card-thumbnail hds-card-hover-zoom-image margin-bottom-2 bg-carbon-black\"><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"678\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?w=1024\" class=\"attachment-large size-large\" alt=\"Evaluating the Advanced Crew Escape Suit\" style=\"transform: scale(1.2); transform-origin: 55% 14%; object-position: 55% 14%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg 1041w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=300,199 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=768,508 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=1024,678 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=400,265 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=600,397 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/657596main_DSC_5175_full.jpg?resize=900,596 900w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><div class=\"padding-right-0\"><div class=\"margin-bottom-1\"><h3 class=\"heading-18\">ARGOS<\/h3><\/div><p class=\"margin-top-0 line-height-lg\">The Active Response Gravity Offload System (ARGOS) simulates different gravity fields by connecting astronauts to an overhead crane that senses their actions. The system then lifts, moves, and descends the astronauts as if they had performed their actions in partial gravity<\/p><div class=\"margin-top-2\"><a href=\"https:\/\/technology.nasa.gov\/patent\/MSC-TOPS-60\" target=\"_self\" class=\"button-primary button-primary-md link-external-0\" rel=\"noopener\"><span role=\"textbox\" aria-multiline=\"true\" aria-label=\"Write button text here\" class=\"line-height-alt-1\" style=\"white-space: pre-wrap; min-width: 1px;\">Learn About ARGOS<\/span><svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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><\/a><\/div><\/div><\/div><\/div><div class=\"hds-card-custom hds-card color-carbon-black display-flex flex-column margin-bottom-5 mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 margin-bottom-6\"><div class=\"hds-card-inner\"><div class=\"hds-card-thumbnail hds-card-hover-zoom-image margin-bottom-2 bg-carbon-black\"><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"213\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/08\/iss056e201225_1.jpg?w=320\" class=\"attachment-large size-large\" alt=\"The International Space Station orbiting above Earth. Four large pairs of solar panels are seen on either side of the station.\" style=\"transform: scale(1); transform-origin: 62% 48%; object-position: 62% 48%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/08\/iss056e201225_1.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/08\/iss056e201225_1.jpg?resize=300,200 300w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/figure><\/div><div class=\"padding-right-0\"><div class=\"margin-bottom-1\"><h3 class=\"heading-18\">International Space Station<\/h3><\/div><p class=\"margin-top-0 line-height-lg\">Research conducted on the space station helps NASA scientists better understand and manage the health effects of long-duration missions, including those related to microgravity. <\/p><div class=\"margin-top-2\"><a href=\"https:\/\/www.nasa.gov\/humans-in-space\/step-2-station-space-laboratory-as-testbed-for-moon-mars\/\" target=\"_self\" class=\"button-primary button-primary-md link-external-0\"><span role=\"textbox\" aria-multiline=\"true\" aria-label=\"Write button text here\" class=\"line-height-alt-1\" style=\"white-space: pre-wrap; min-width: 1px;\">Discover the International Space Station<\/span><svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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><\/a><\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t<\/div>\n\n<div id=\"\" class=\"width-full maxw-full bg-carbon-05 padding-bottom-9 padding-top-9 hds-module hds-module-full wp-block-nasa-blocks-featured-link\">\n\t<div class=\"grid-container grid-container-block padding-x-0 padding-top-9 desktop:padding-top-0\">\n\t\t<div class=\"grid-row flex-align-center\">\n\t\t\t<div class=\"grid-col-12 desktop:grid-col-6 padding-x-3 desktop:padding-right-5 margin-bottom-5\">\n\t\t\t\t<div class=\"label margin-bottom-2\"><\/div>\n\t\t\t\t<h2 class=\"page-heading-md\">Podcast: Gravity and Health in Space<\/h2>\n\t\t\t\t<p class=\"p-md\">In an episode of "Houston, We Have a Podcast," a NASA scientist describes how transitioning between gravity fields affects human health.<\/p>\n\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/podcasts\/houston-we-have-a-podcast\/fighting-space-effects\/\" target=\"_self\" class=\"button-primary button-primary-md\" aria-label=\"\">\n\t\t\t\t\t<span class=\"line-height-alt-1\">Listen to Houston We Have a Podcast<\/span>\n\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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<\/a>\n\t\t\t<\/div>\n\t\t\t<div class=\"grid-col-12 desktop:grid-col-6 desktop:padding-left-5\">\n\t\t\t\t<div class=\"width-full\">\n\t\t\t\t\t<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?w=1024\" class=\"attachment-large size-large\" alt=\"Apollo 16 Mission Commander John Young Salutes the U.S. Flag\" style=\"transform: scale(1); transform-origin: 10% 32%; object-position: 10% 32%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg 3072w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=300,300 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=768,768 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=1024,1024 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=1536,1536 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=2048,2048 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=200,200 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=400,400 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=600,600 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=900,900 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=1200,1200 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/09\/as16-113-18339.jpg?resize=2000,2000 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\"><strong><em>Credit: NASA<\/em><\/strong><\/div><\/figcaption><\/div>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\n\t<\/div>\n\n<div id=\"\" class=\"hds-featured-story minh-tablet bg-carbon-black flex-column position-relative hds-module hds-module-full wp-block-nasa-blocks-featured-story\">\t<div class=\"hds-foreground-wrapper display-flex flex-column padding-y-9 padding-x-3\">\n\t\t<div class=\"grid-row grid-container grid-container-widescreen margin-bottom-auto width-full maxw-desktop-lg padding-0 z-400\">\n\t\t\t<div class=\"display-flex flex-align-center heading-12 text-uppercase z-400 color-spacesuit-white\">\n\t\t\t\t<svg class=\"margin-right-1\" version=\"1.1\" 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 0 500 500\" style=\"enable-background:new 0 0 500 500;\" xml:space=\"preserve\"> <g> <path d=\"M490.4,19.2c-27.5,0-55,0-82.5,0c-43.4,0-86.7,0-130.1,0c-36.7,0-73.3,0-110,0c-43.4,0-86.7,0-130.1,0 c-8.6,0-17.1,0-25.7,0c-0.5,0-1.1,0-1.7,0c0,0.6-0.1,1-0.1,1.5c0,74.2,0,148.4,0,222.6c0,79,0,158,0,237c0,0.2,0,0.4,0,0.6 c-0.1,0-0.3-0.1-0.3-0.1c0-0.4,0-0.8,0-1.2c0-153.6,0-307.1,0-460.7c159.7,0,319.3,0,479,0C489.5,18.9,489.9,19.1,490.4,19.2z\"><\/path> <g> <path d=\"M243.5,1.4C108,4.8-2.5,117.7,1.4,257.4C5.2,391.1,115.8,501,254.5,498.6c135.9-2.4,245.1-113.6,244.1-250.8 C497.2,108.9,382.9-2,243.5,1.4z M249.9,473.7c-122.8,0-222.5-99.1-223.6-221.6c-1.1-124.5,99-224.7,221.4-225.9 c124.3-1.2,224.9,98.6,226.1,221.5C474.9,373.1,373.5,473.9,249.9,473.7z\"><\/path> <path d=\"M384.2,205.3c-32.8,0.1-65.5,0.1-98.3,0.2c-3.1,0-3.9-0.6-4.8-3.6c-2.1-6.9-4.2-13.7-6.3-20.6 c-7.7-24.9-15.3-49.9-23-74.8c-0.5-1.8-1.1-3.5-1.8-5.5c-0.2,0.6-0.4,0.9-0.4,1.1c-10.2,33.1-20.3,66.3-30.5,99.4 c-1,3.3-1.7,3.9-5.3,3.9c-10.8,0-21.5,0-32.3-0.1c-14.2,0-28.4-0.1-42.6-0.1c-8.4,0-16.7,0-25.6,0c0.9,0.7,1.4,1.1,1.9,1.5 c26.6,20.3,53.3,40.5,79.9,60.8c2.2,1.7,2.6,2.9,1.8,5.5c-9.1,29.1-18.1,58.2-27.2,87.3c-1.4,4.5-2.8,9-4.2,13.7 c0.6-0.4,1-0.6,1.3-0.9c26.6-20.4,53.1-40.8,79.7-61.1c3.1-2.4,3.8-2.4,6.9,0c26.5,20.3,53,40.7,79.5,61c0.4,0.3,0.8,0.5,1.5,1 c-0.3-1-0.4-1.6-0.6-2.2c-10.2-32.7-20.4-65.5-30.5-98.2c-1.1-3.5-0.8-4.3,2.1-6.6c26.1-19.8,52.1-39.6,78.2-59.5 c0.9-0.7,1.8-1.4,3.1-2.4C385.5,205.3,384.8,205.3,384.2,205.3z\"><\/path> <\/g> <\/g><\/svg>\n\t\t\t\t<span class=\"label\">Featured Story<\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"grid-row grid-container grid-container-widescreen width-full maxw-desktop-lg padding-0 z-400\">\n\t\t\t<div class=\"grid-col-12 tablet:grid-col-12 desktop:grid-col-6 z-400\">\n\t\t\t\t<div class=\"margin-0\">\n\t\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t\t<h1 class=\"display-60 color-spacesuit-white-important\">The Human Body in Space<\/h1>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<p class=\"p-lg color-spacesuit-white-important\">For more than 50 years, NASA\u2019s Human Research Program (HRP) has studied what happens to the human body in space. Researchers...<\/p>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/humans-in-space\/the-human-body-in-space\/\" class=\"button-primary button-primary-md\">\n\t\t\t\t\t\t<span class=\"section-heading-md color-spacesuit-white-important\">Read the Story<\/span>\n\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" 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<\/a>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"grid-col-12 tablet:grid-col-12 desktop:grid-col-6 z-400\"><\/div>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"skrim-overlay skrim-left mobile-skrim-top z-200\"><\/div>\n\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:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/flex.png?w=1024\" ><\/figure>\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\/humans-in-space\/astronauts\/\" 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>Astronauts<\/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=\"320\" height=\"480\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/edu_srch_microsofts_hacking_stem.jpg?w=320\" 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\/edu_srch_microsofts_hacking_stem.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/edu_srch_microsofts_hacking_stem.jpg?resize=200,300 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/edu_srch_microsofts_hacking_stem.jpg?resize=267,400 267w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/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\/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\/international-space-station\/space-station-research-and-technology\/\" 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 Station Research and Technology<\/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\/03\/iss064e015250.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\/03\/iss064e015250.jpg 1041w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=200,300 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=768,1152 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=682,1024 682w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=1024,1536 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=267,400 267w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=400,600 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=600,900 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/iss064e015250.jpg?resize=800,1200 800w\" 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<\/div>\n\t\t\t<\/div>\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Astronauts will encounter three different gravity fields on a Mars mission. On the six-month trek between the planets, crews will be weightless. While living and working on Mars, crews will be in approximately one-third of Earth\u2019s gravity. Finally, upon returning home, crews will have to readapt to Earth\u2019s gravity. Switching from one gravity field to another is [...]<\/p>\n","protected":false},"author":382,"featured_media":566199,"parent":319203,"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":[3811],"news-tags":[],"internal-terms":[],"coauthors":[11928],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"WebPage","headline":"Hazard: Gravity Fields","url":"https:\/\/www.nasa.gov\/hrp\/hazard-gravity-fields\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/hrp\/hazard-gravity-fields\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/microgravity.1.png?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/microgravity.1.png"},"articleSection":"NASA Directorates","author":[{"@type":"Person","name":"Abby Graf"}],"creator":["Abby Graf"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Directorates","Science Mission Directorate","Space Life & Physical Sciences Research & Applications Division","Human Research Program"],"dateCreated":"2023-10-26T07:08:23Z","datePublished":"2023-10-26T07:08:23Z","dateModified":"2024-01-10T19:46:07Z"},"rendered":"<meta name=\"parsely-title\" content=\"Hazard: Gravity Fields\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/hrp\/hazard-gravity-fields\/\" \/>\n<meta name=\"parsely-type\" content=\"index\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/microgravity.1.png?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2023-10-26T07:08:23Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Directorates\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Directorates,Science Mission Directorate,Space Life & Physical Sciences Research & Applications Division,Human Research Program\" \/>\n<meta name=\"parsely-author\" content=\"Abby Graf\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":2,"time_ago":"8 months","featured_image":{"id":566199,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/10\/microgravity.1.png","title":"microgravity.1","alt":"","caption":"Water drop floats in front of NASA astronaut Christina Koch."},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/553382"}],"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\/382"}],"version-history":[{"count":67,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/553382\/revisions"}],"predecessor-version":[{"id":591447,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/553382\/revisions\/591447"}],"up":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/319203"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/566199"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=553382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=553382"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=553382"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=553382"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=553382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}