{"id":33075,"date":"2025-02-12T12:43:03","date_gmt":"2025-02-12T17:43:03","guid":{"rendered":"https:\/\/www.monsffa.ca\/?p=33075"},"modified":"2025-02-12T12:47:15","modified_gmt":"2025-02-12T17:47:15","slug":"should-you-be-worried-about-asteroid-2024-yr4","status":"publish","type":"post","link":"https:\/\/www.monsffa.ca\/?p=33075","title":{"rendered":"Should you be worried about Asteroid 2024 YR4?"},"content":{"rendered":"<div class=\"flex justify-center mx-auto \">\n<div class=\"container-med w-full px-6\">\n<header>\n<p class=\"mt-8 mn:mt-20 mb-0\"><a href=\"https:\/\/www.planetary.org\/profiles\/kate-howells\">Kate Howells<\/a> \u2022 Jan 30, 2025<\/p>\n<p><a href=\"https:\/\/www.planetary.org\/articles\/should-you-be-worried-about-asteroid-2024-yr4\">https:\/\/www.planetary.org\/articles\/should-you-be-worried-about-asteroid-2024-yr4<\/a><\/p>\n<h1 class=\"mb-6 leading-tight\">Should you be worried about Asteroid 2024 YR4?<\/h1>\n<\/header>\n<\/div>\n<\/div>\n<div class=\"flex justify-center mx-auto\">\n<div class=\"container-med w-full px-6\">\n<p>A recently discovered near-Earth asteroid, dubbed 2024 YR4, is making headlines because of the slim possibility that it could impact Earth on Dec. 22, 2032. Early observations suggest that it has\u00a0<a href=\"https:\/\/blogs.nasa.gov\/planetarydefense\/2025\/01\/29\/nasa-shares-observations-of-recently-identified-near-earth-asteroid\/\">about a 1%<\/a> chance of colliding with our planet. So why all the fuss?<\/p>\n<p>2024 YR4 is garnering so much attention because of\u00a0<a href=\"https:\/\/cneos.jpl.nasa.gov\/stats\/size.html\">more than 37,000 near-Earth asteroids already discovered<\/a>, it is the only one with more than a 1 in 1,000 chance of impact. \u201cIt is rare to have an asteroid with a non-zero probability of hitting Earth,\u201d said Heidi Hammel, Vice President for Science at the Association of Universities for Research in Astronomy and Vice President of the The Planetary Society\u2019s board of directors.<\/p>\n<p>To put it into context, 2024 YR4 has a Torino scale rating of as high as 3. The\u00a0<a href=\"https:\/\/cneos.jpl.nasa.gov\/sentry\/torino_scale.html\">Torino Impact Hazard Scale<\/a> ranges from 0 (no chance of impact) to 10 (certain impact likely to cause planetwide devastation). Ratings of 1 are fairly common among newly discovered asteroids, but follow-up observations have always reduced that rating to 0. Asteroid 2024 YR4\u2019s rating of 3 is the second-highest an asteroid has ever reached. The only asteroid ranked higher was\u00a0<a href=\"https:\/\/www.planetary.org\/articles\/will-apophis-hit-earth\">Apophis<\/a>, discovered in 2004 and rated 4, but subsequently downgraded to 1 and then 0. We now know with certainty that Apophis will only pass close to Earth in 2029.<\/p>\n<p>Right now, ESA estimates that 2024 YR4\u2019s diameter is\u00a0<a href=\"https:\/\/www.esa.int\/Space_Safety\/Planetary_Defence\/ESA_actively_monitoring_near-Earth_asteroid_2024_YR4\">in the range of 40-100 meters (around 130-330 feet)<\/a>. If it did collide with Earth, an impactor of that size could cause an explosion in the atmosphere or even an impact crater, either of which could cause serious, even devastating, damage on the ground.<\/p>\n<\/div>\n<\/div>\n<div class=\"flex justify-center mx-auto container-med w-full px-0 sm:px-6 my-12\">\n<figure class=\"table mx-auto\"><a href=\"https:\/\/www.planetary.org\/space-images\/the-hazard-by-the-numbers\"> <picture class=\"block\"><source class=\" lazyloading\" srcset=\"https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_768x417_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg.webp 768w, https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_576x313_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg.webp 576w\" type=\"image\/webp\" sizes=\"100vw\" data-srcset=\"https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_768x417_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg.webp 768w, https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_576x313_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg.webp 576w\" \/><img class=\"lazyloaded alignleft\" sizes=\"100vw\" srcset=\"https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_768x417_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg 768w, https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_576x313_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg 576w\" alt=\"Asteroid danger by the numbers\" data-srcset=\"https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_768x417_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg 768w, https:\/\/planetary.s3.amazonaws.com\/web\/assets\/pictures\/_576x313_crop_center-center_82_line\/asteroid-danger-by-the-numbers.jpg 576w\" \/> <\/picture> <\/a><figcaption class=\"px-6 sm:px-0 font-light mt-2 mb-0 leading-normal text-base\"><span class=\"text-base font-semibold uppercase my-0\">Asteroid danger by the numbers<\/span> The risk, characteristics, and rarity of various kinds of asteroid impacts.<span class=\"text-gray-700 ml-2\"><em>Image: NASA<\/em><\/span><\/figcaption><\/figure>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kate Howells \u2022 Jan 30, 2025 https:\/\/www.planetary.org\/articles\/should-you-be-worried-about-asteroid-2024-yr4 Should you be worried about Asteroid 2024 YR4? A recently discovered near-Earth asteroid, dubbed 2024 YR4, is making headlines because of the slim possibility that it could impact Earth on Dec. 22, 2032. Early observations suggest that it has\u00a0about a 1% chance of colliding with our planet. So &hellip; <a href=\"https:\/\/www.monsffa.ca\/?p=33075\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Should you be worried about Asteroid 2024 YR4?<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":645,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[133],"tags":[],"class_list":["post-33075","post","type-post","status-publish","format-standard","hentry","category-astronomy-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/posts\/33075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/users\/645"}],"replies":[{"embeddable":true,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=33075"}],"version-history":[{"count":4,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/posts\/33075\/revisions"}],"predecessor-version":[{"id":33079,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=\/wp\/v2\/posts\/33075\/revisions\/33079"}],"wp:attachment":[{"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=33075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.monsffa.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}