{"id":37545,"date":"2024-10-08T15:58:17","date_gmt":"2024-10-08T15:58:17","guid":{"rendered":"https:\/\/one.sightlinemg.com\/c4isrnet\/uncategorized\/2024\/10\/08\/europe-launches-space-mission-in-defense-against-city-killer-asteroids\/"},"modified":"2026-08-08T01:04:02","modified_gmt":"2026-08-08T01:04:02","slug":"europe-launches-space-mission-in-defense-against-city-killer-asteroids","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/c4isrnet\/space\/2024\/10\/08\/europe-launches-space-mission-in-defense-against-city-killer-asteroids\/","title":{"rendered":"Europe launches space mission in defense against city-killer asteroids"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">PARIS \u2014 Europe launched its first spacecraft to help develop a defense against city-killer asteroids slamming into Earth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The European Space Agency\u2019s Hera mission, to which defense firms <a href=\"https:\/\/www.defensenews.com\/industry\/2024\/01\/08\/germanys-hensoldt-hires-thales-executive-to-lead-company\/\">Thales<\/a> and <a href=\"https:\/\/www.defensenews.com\/global\/europe\/2024\/07\/03\/spurned-by-knds-leonardo-teams-with-rheinmetall-for-italys-new-tanks\/\">Leonardo<\/a> contributed technology through their joint venture Thales Alenia Space, took off from Cape Canaveral on Monday riding on a SpaceX Falcon 9 rocket. The mission will study the results of a NASA experiment that was humankind\u2019s first attempt at deflecting an asteroid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">About 30,000 asteroids measuring 100 to 300 meters travel the solar system in orbits that bring them relatively close to Earth, with one such space rock hitting the planet every 10,000 years, according to Thales. The impact of such an asteroid would be equivalent to an explosion of around 50 megatons, equal to the Soviet Union\u2019s Tsar Bomba, the most powerful nuclear weapon ever tested.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWe currently know of more than 35 000 asteroids that come close enough to Earth for us to keep an eye on,\u201d ESA wrote in post on X, formerly Twitter. \u201cHera is part of the international effort to answer the question: Could we do anything if we spotted one on a collision course?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Hera mission will investigate the result of NASA\u2019s <a href=\"https:\/\/science.nasa.gov\/mission\/dart\/\"><u>asteroid redirection test<\/u><\/a>, in which the U.S. agency rammed a spacecraft into the asteroid Dimorphos in 2022 to test planetary defense capabilities. Hera will reach the binary asteroid system that includes Dimorphos in October 2026, and gathering close-up data may help turn NASA\u2019s kinetic impact experiment into a potentially repeatable planetary defense technique, Thales said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mid-sized asteroids are the ones to worry about, as their impact would be devastating for a populated area, capable of destroying an entire city or create a tsunami, according to Thales. Binary systems, a term describing pairs of two orbiting each other, account for around 15% of all known asteroids, but none have ever been studied in detail, ESA says.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cHera will provide valuable data for future asteroid deflection missions and science to help humanity\u2019s understanding of asteroid geophysics as well as solar system formation and evolutionary processes,\u201d SpaceX said in a post on X.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thales Alenia Space provided the communications subsystem for the Hera mission, allowing ESA to track and control the spacecraft from a distance of up to 500 million kilometers away, Thales said. The joint venture also supplied the power unit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ESA plans to build on the experience acquired with Hera for its future Ramses mission, which needs to launch in 2028 for a rendezvous with the asteroid Apophis, which will pass within 32,000 kilometers of Earth in April 2029.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cIf we did detect an asteroid on a collision course with Earth, a reconnaissance mission like Hera or Ramses would likely be launched as soon as possible to precisely determine the object\u2019s trajectory and rule out a false alarm,\u201d ESA <a href=\"https:\/\/x.com\/ESA_Hera\"><u>said on X.<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Such as mission would also measure the asteroid\u2019s physical properties, which would be essential to determine when and where, and with what power, a deflector mission would need to hit the asteroid to safely divert it away from Earth, according to ESA.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Hera mission will investigate the result of NASA\u2019s asteroid redirection test, in which the U.S. agency rammed a spacecraft into the asteroid Dimorphos.<\/p>\n","protected":false},"author":7,"featured_media":119285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":37,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":[]},"categories":[7,29,37],"tags":[],"coauthors":[3282],"class_list":["post-37545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-battlefield-tech","category-home","category-space"],"acf":{"subheadline":"","legacy_arc_id":"BKDIPRTRYZE7PAO2FOMXFDU4GU","arc_canonical_url":"\/global\/europe\/2024\/10\/08\/europe-launches-space-mission-in-defense-against-city-killer-asteroids\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented 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