{"id":246261,"date":"2026-10-31T03:31:34","date_gmt":"2026-10-31T08:31:34","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/10\/jwst-reveals-a-distant-galaxy-that-may-let-most-of-its-ionizing-radiation-escape"},"modified":"2026-10-31T03:31:34","modified_gmt":"2026-10-31T08:31:34","slug":"jwst-reveals-a-distant-galaxy-that-may-let-most-of-its-ionizing-radiation-escape","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/10\/jwst-reveals-a-distant-galaxy-that-may-let-most-of-its-ionizing-radiation-escape","title":{"rendered":"JWST reveals a distant galaxy that may let most of its ionizing radiation escape"},"content":{"rendered":"\n<p>Astronomers using the James Webb Space Telescope (JWST) have found evidence that a distant, exceptionally blue galaxy may allow most of its ionizing radiation to escape into space. Known as EBG-1, the gravitationally lensed galaxy is seen at a redshift of 9.244, about 530 million years after the Big Bang. The paper was posted to the <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2610.24092\" target=\"_blank\"><i>arXiv<\/i><\/a> preprint server on Oct. 16.<\/p>\n<p>Scientists estimate that cosmic reionization happened roughly between 600 million and a billion years (around redshifts 6 to 8) after the Big Bang and was complete by redshift 5.5. During this epoch, ionizing ultraviolet radiation from early stars and galaxies converted the universe\u2019s neutral hydrogen gas into the ionized state we see today.<\/p>\n<p>The ultraviolet radiation driving this transition is mainly made up of Lyman continuum (LyC) photons with wavelengths less than 912 \u00c5. Much of this light is absorbed by gas and dust inside a galaxy, so the fraction that escapes into intergalactic space, called the escape fraction, is key to estimating how much a galaxy contributed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomers using the James Webb Space Telescope (JWST) have found evidence that a distant, exceptionally blue galaxy may allow most of its ionizing radiation to escape into space. Known as EBG-1, the gravitationally lensed galaxy is seen at a redshift of 9.244, about 530 million years after the Big Bang. The paper was posted to [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-246261","post","type-post","status-publish","format-standard","hentry","category-cosmology"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246261","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\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=246261"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246261\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=246261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=246261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=246261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}