{"id":140462,"date":"2022-07-28T10:11:00","date_gmt":"2022-07-28T14:11:00","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-481060"},"modified":"2024-04-26T13:00:09","modified_gmt":"2024-04-26T17:00:09","slug":"a-history-of-near-earth-objects-research","status":"publish","type":"topic","link":"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/a-history-of-near-earth-objects-research\/","title":{"rendered":"A History of Near-Earth Objects Research"},"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>NASA History<\/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\/history\/explore-nasas-history\/\">Explore NASA’s History<\/a><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/history\/history-office\/\">NASA History Office<\/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>Publications and Resources<\/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\/history\/history-publications-and-resources\/nasa-history-series\/\">NASA History Series<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/news-and-notes\/\">News and Notes<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/aeronautics-and-space-report-of-the-president\/\">Aeronautics and Space Report of the President<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/oral-histories\/\">Oral Histories<\/a><\/li><li class=\"usa-nav__submenu-item \"><a class=\"usa-nav__link\" target=\"_self\" href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/other-research-resources\/\">Research Resources<\/a><\/li><\/ul><\/li><li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/www.nasa.gov\/archives\/\">NASA Archives<\/a><\/li><\/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\tA History of Near-Earth Objects Research\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\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=\"1347\" height=\"2048\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?w=1347\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Image Background of Earth and Asteroid\" style=\"transform: scale(1); transform-origin: 67% 87%; object-position: 67% 87%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg 1875w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=197,300 197w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=768,1167 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=674,1024 674w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=1011,1536 1011w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=1347,2048 1347w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=263,400 263w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=395,600 395w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=592,900 592w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=789,1200 789w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=1316,2000 1316w\" sizes=\"(max-width: 1347px) 100vw, 1347px\" loading=\"eager\" \/><\/figure>\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\n\n<p><strong>By Erik M. Conway, Donald K. Yeomans, and Meg Rosenburg<\/strong><\/p>\n\n\n\n<p>In 2016, NASA took on a new responsibility: defending our planet from devastating impacts by asteroids and comets that approach the Earth, or near-Earth objects. That event, which followed the prominent Chelyabinsk meteor explosion in 2013, reflected a growing interest in, and concern about, the threat of celestial impacts. In ancient times, the solar system\u2019s small bodies\u2014asteroids and comets\u2014were sometimes seen as ill omens and warnings from the gods. In modern times, they have come to be seen as the solar system\u2019s rubble, leftovers from its formation, but were still largely ignored until the late 20th century. Increasingly, they have been seen by scientists as objects worthy of study, by the general public and the U.S. government as potential threats to be mitigated, and by space advocates as future resources. This book tells the fascinating story of these reinterpretations and NASA\u2019s role in them.<\/p>\n\n\n\n<p><strong>SP-2022-4235<\/strong><\/p>\n\n\n<div id=\"\" class=\"hds-featured-link-list bg-spacesuit-white padding-x-2 tablet:padding-x-3 desktop:padding-x-4 padding-y-5 desktop:padding-y-6 hds-module hds-module-full wp-block-nasa-blocks-featured-link-list\">\t<div class=\"grid-container grid-container-block padding-0\">\n\t\t<div class=\"margin-bottom-4\">\n\t\t\t<h2 class=\"heading-22\">\n\t\t\t\tDownload the e-Book\t\t\t<\/h2>\n\t\t<\/div>\n\n\t\t\t\t\t<div class=\"grid-row padding-y-2 border-top-1px border-color-carbon-30-important\">\n\t\t\t\t<div class=\"grid-row featured-link-list-row width-full flex-align-center\">\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 tablet:padding-right-3 desktop:padding-right-5\">\n\t\t\t\t\t\t<div class=\"width-full\">\n\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper width-full ratio-1x1 radius-pill overflow-hidden\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?w=150&h=150&crop=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Front cover of the book A History of Near Earth Objects Research\" 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\/2022\/07\/neo-front-cover.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=200,200 200w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div> \n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8 desktop:grid-col-10 padding-left-3 desktop:padding-left-0\">\n\t\t\t\t\t\t<div class=\"grid-row flex-align-center\">\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<h2 class=\"heading-36 margin-0\">Fixed Layout<\/h2>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<p class=\"p-md margin-0 color-carbon-black\">PDF format (4.4 MB)<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 display-flex flex-justify-end\">\n\t\t\t\t\t\t<a href=\"https:\/\/www3.nasa.gov\/sites\/default\/files\/atoms\/files\/a_history_of_near-earth_object_research_tagged.pdf\" target=\"_blank\" aria-label=\"\" rel=\"noopener\">\n                            <svg class=\"hds-featured-link-list-button margin-left-auto margin-right-0\" viewBox=\"0 0 32 32\" fill=\"none\">\n                                <circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path>\n                            <\/svg>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-row padding-y-2 border-top-1px border-color-carbon-30-important\">\n\t\t\t\t<div class=\"grid-row featured-link-list-row width-full flex-align-center\">\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 tablet:padding-right-3 desktop:padding-right-5\">\n\t\t\t\t\t\t<div class=\"width-full\">\n\t\t\t\t\t\t\t<div class=\"hds-cover-wrapper width-full ratio-1x1 radius-pill overflow-hidden\">\n\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?w=150&h=150&crop=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Front cover of the book A History of Near Earth Objects Research\" 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\/2022\/07\/neo-front-cover.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?resize=200,200 200w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div> \n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8 desktop:grid-col-10 padding-left-3 desktop:padding-left-0\">\n\t\t\t\t\t\t<div class=\"grid-row flex-align-center\">\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<h2 class=\"heading-36 margin-0\">e-Book Readers<\/h2>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"grid-col-12 desktop:grid-col-6\">\n\t\t\t\t\t\t\t\t<p class=\"p-md margin-0 color-carbon-black\">EPUB format (4.3 MB)<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-2 desktop:grid-col-1 display-flex flex-justify-end\">\n\t\t\t\t\t\t<a href=\"https:\/\/www3.nasa.gov\/sites\/default\/files\/atoms\/files\/history_of_near-earth_objects_research.epub\" target=\"_blank\" aria-label=\"\" rel=\"noopener\">\n                            <svg class=\"hds-featured-link-list-button margin-left-auto margin-right-0\" viewBox=\"0 0 32 32\" fill=\"none\">\n                                <circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path>\n                            <\/svg>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t<\/div>\n\n<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\">More History Publications<\/h2>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"margin-0 padding-0\">Explore more titles in NASA's History Series.<\/p>\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<a href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/\" target=\"_self\" class=\"button-primary button-primary link-external-true\">\n\t\t\t<span class=\"line-height-alt-1 \" >\n\t\t\t\tAll NASA History Publications                \t\t\t<\/span>\n\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<\/a>\n\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\/history\/history-publications-and-resources\/nasa-history-series\/not-yet-imagined-a-study-of-hubble-space-telescope-operations\/\" class=\"hds-card-topic 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 padding-3\"><h3 class=\"heading-29 hds-topic-card-heading color-spacesuit-white\"><span>Not Yet Imagined: A Study of Hubble Space Telescope Operations<\/span><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><\/h3><\/div><\/div><div class=\"hds-card-thumbnail\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"937\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?w=640\" 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\/2020\/12\/not_yet_imagined_front_cover.jpg 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=205,300 205w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=768,1124 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=700,1024 700w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=1050,1536 1050w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=273,400 273w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=410,600 410w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=615,900 615w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/12\/not_yet_imagined_front_cover.jpg?resize=820,1200 820w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/beyond-earth\/\" class=\"hds-card-topic 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 padding-3\"><h3 class=\"heading-29 hds-topic-card-heading color-spacesuit-white\"><span>Beyond Earth: A Chronicle of Deep Space Exploration, 1958\u20132016<\/span><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><\/h3><\/div><\/div><div class=\"hds-card-thumbnail\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"828\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?w=640\" 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\/2018\/09\/beyond_earth_ebook_cover.jpg 1623w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=232,300 232w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=768,994 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=791,1024 791w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=1187,1536 1187w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=1583,2048 1583w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=309,400 309w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=464,600 464w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=696,900 696w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=927,1200 927w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/09\/beyond_earth_ebook_cover.jpg?resize=1546,2000 1546w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/50-years-of-solar-system-exploration-historical-perspectives\/\" class=\"hds-card-topic 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 padding-3\"><h3 class=\"heading-29 hds-topic-card-heading color-spacesuit-white\"><span>50 Years of Solar System Exploration: Historical Perspectives<\/span><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><\/h3><\/div><\/div><div class=\"hds-card-thumbnail\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"936\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?w=640\" 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\/09\/solar_system_dust_jacket-front-cover_0.jpg 1688w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=205,300 205w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=768,1123 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=700,1024 700w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=1050,1536 1050w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=1400,2048 1400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=273,400 273w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=410,600 410w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=615,900 615w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=820,1200 820w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/09\/solar_system_dust_jacket-front-cover_0.jpg?resize=1367,2000 1367w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/div><\/div><\/a><a href=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/science-advice-to-nasa-conflict-consensus-partnership-leadership\/\" class=\"hds-card-topic 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 padding-3\"><h3 class=\"heading-29 hds-topic-card-heading color-spacesuit-white\"><span>Science Advice to NASA: Conflict, Consensus, Partnership, Leadership<\/span><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><\/h3><\/div><\/div><div class=\"hds-card-thumbnail\"><div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\"><\/div><figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"828\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?w=640\" 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\/2017\/08\/science_advice_cover-web.jpg 1623w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=232,300 232w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=768,994 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=791,1024 791w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=1187,1536 1187w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=1583,2048 1583w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=309,400 309w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=464,600 464w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=696,900 696w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=927,1200 927w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2017\/08\/science_advice_cover-web.jpg?resize=1546,2000 1546w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/div><\/div><\/a>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>By Erik M. Conway, Donald K. Yeomans, and Meg Rosenburg In 2016, NASA took on a new responsibility: defending our planet from devastating impacts by asteroids and comets that approach the Earth, or near-Earth objects. That event, which followed the prominent Chelyabinsk meteor explosion in 2013, reflected a growing interest in, and concern about, the threat [...]<\/p>\n","protected":false},"author":34,"featured_media":148464,"parent":163226,"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":[3241,3242,11793,2671,9472],"news-tags":[],"internal-terms":[4962,11519,12369],"coauthors":[8393],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"WebPage","headline":"A History of Near-Earth Objects Research","url":"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/a-history-of-near-earth-objects-research\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/a-history-of-near-earth-objects-research\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg"},"articleSection":"The Solar System","author":[{"@type":"Person","name":"Michele Ostovar"}],"creator":["Michele Ostovar"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["Science & Research","Planetary Science","Planetary Defense","Asteroids","Comets","E-Books","NASA History"],"dateCreated":"2022-07-28T14:11:00Z","datePublished":"2022-07-28T14:11:00Z","dateModified":"2024-04-26T17:00:09Z"},"rendered":"<meta name=\"parsely-title\" content=\"A History of Near-Earth Objects Research\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/history\/history-publications-and-resources\/nasa-history-series\/a-history-of-near-earth-objects-research\/\" \/>\n<meta name=\"parsely-type\" content=\"index\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2022-07-28T14:11:00Z\" \/>\n<meta name=\"parsely-section\" content=\"The Solar System\" \/>\n<meta name=\"parsely-tags\" content=\"Science & Research,Planetary Science,Planetary Defense,Asteroids,Comets,E-Books,NASA History\" \/>\n<meta name=\"parsely-author\" content=\"Michele Ostovar\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":1,"time_ago":"2 years","featured_image":{"id":148464,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2022\/07\/neo-front-cover.jpg","title":"A History of Near Earth Objects Research Front Cover","alt":"Front cover of the book A History of Near Earth Objects Research","caption":"Front cover of the book A History of Near Earth Objects Research"},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/140462"}],"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\/34"}],"version-history":[{"count":13,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/140462\/revisions"}],"predecessor-version":[{"id":654075,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/140462\/revisions\/654075"}],"up":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/topic\/163226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/148464"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=140462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=140462"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=140462"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=140462"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=140462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}