{"id":241639,"date":"2026-07-27T16:05:22","date_gmt":"2026-07-27T21:05:22","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/07\/extragalactic-positron-annihilation-hotspots-might-mean-milky-way-produces-far-more-positrons-than-thought"},"modified":"2026-07-27T16:05:22","modified_gmt":"2026-07-27T21:05:22","slug":"extragalactic-positron-annihilation-hotspots-might-mean-milky-way-produces-far-more-positrons-than-thought","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/07\/extragalactic-positron-annihilation-hotspots-might-mean-milky-way-produces-far-more-positrons-than-thought","title":{"rendered":"Extragalactic positron-annihilation hotspots might mean Milky Way produces far more positrons than thought"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/extragalactic-positron-annihilation-hotspots-might-mean-milky-way-produces-far-more-positrons-than-thought.jpg\"><\/a><\/p>\n<p>Positrons\u2014the antimatter counterpart of electrons\u2014are created in high-energy cosmic processes. When normal matter meets its antimatter counterpart, they annihilate, or vanish, and produce a distinctive 511 keV gamma-ray signal. Scientists use this signal to detect where these annihilations occur.<\/p>\n<p>Now, 20 years\u2019 worth of this kind of data has revealed that positron annihilations might be happening in unexpected places and at far greater rates than previously thought. The new study, <a href=\"https:\/\/www.aanda.org\/articles\/aa\/full_html\/2026\/07\/aa59502-26\/aa59502-26.html\" target=\"_blank\">published<\/a> in <i>Astronomy &amp; Astrophysics<\/i>, describes how astronomers are interpreting a new positron annihilation map and whether the results represent true annihilations or just imaging artifacts.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Positrons\u2014the antimatter counterpart of electrons\u2014are created in high-energy cosmic processes. When normal matter meets its antimatter counterpart, they annihilate, or vanish, and produce a distinctive 511 keV gamma-ray signal. Scientists use this signal to detect where these annihilations occur. Now, 20 years\u2019 worth of this kind of data has revealed that positron annihilations might be [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,8],"tags":[],"class_list":["post-241639","post","type-post","status-publish","format-standard","hentry","category-energy","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/241639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=241639"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/241639\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=241639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=241639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=241639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}