{"id":468052,"date":"2026-07-02T06:17:20","date_gmt":"2026-07-01T20:17:20","guid":{"rendered":"https:\/\/science.nasa.gov\/missions\/chandra\/nasas-chandra-examines-milky-way-at-arms-length\/"},"modified":"2026-07-02T06:17:20","modified_gmt":"2026-07-01T20:17:20","slug":"nasas-chandra-examines-milky-way-at-arms-length","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=468052","title":{"rendered":"NASA\u2019s Chandra Examines Milky Way at Arms\u2019 Length"},"content":{"rendered":"<div id=\"\" class=\"padding-top-5 padding-bottom-3 width-full maxw-full hds-module hds-module-full alignfull wp-block-nasa-blocks-article-intro\">\n<div class=\"width-full maxw-full article-header\">\n<div class=\"margin-bottom-2 width-full maxw-full\">\n<p class=\"label carbon-60 margin-0 margin-bottom-3 padding-0\">5 min read<\/p>\n<h1 class=\"display-48 margin-bottom-2\">NASA\u2019s Chandra Examines Milky Way at Arms\u2019 Length<\/h1>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"\" class=\"width-full maxw-full margin-left-auto margin-right-auto hds-media-align-inline hds-module wp-block-nasa-blocks-video\">\n<div class=\"hds-cover-wrapper width-full maxw-full flex-column\">\n<div class=\"hds-video-container width-full embed-container\" style=\"\"><video title=\"NASA\u2019s Chandra Examines Milky Way at Arms\u2019 Length\" id=\"nasa-plus-svpzF\" class=\"video-js video-player vjs-fluid width-full\" data-setup='{\"controls\":true,\"preload\":\"auto\",\"plugins\":{\"mux\":{\"debug\":false,\"data\":{\"env_key\":\"91nns8oppqdfqc44lgo4b1gni\",\"player_name\":\"www.nasa.gov Player\",\"video_name\":\"NASAu2019s Chandra Examines Milky Way at Armsu2019 Length\"}}}}'  ><source src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/missions\/chandra\/2026\/arms.mp4\" type=\"video\/mp4\"><p class=\"vjs-no-js\">To view this video please enable JavaScript, and consider upgrading to a web browser that<br \/>\n\t\t\t\t\t<a href=\"https:\/\/videojs.com\/html5-video-support\/\"  rel=\"noopener\">supports HTML5 video<\/a><\/p><\/video><\/div>\n<\/div>\n<div class=\"hds-media-caption hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">\n<div>This sequence begins with an artist\u2019s concept showing the Milky Way galaxy as seen from above, with the estimated positions of spiral arms based on previous data. Next is an updated artist\u2019s concept of the Milky Way, where the positions of the two spiral arms most distant from the center of the galaxy have been adjusted based on newly processed X-ray data from NASA\u2019s Chandra X-ray Observatory and ESA\u2019s XMM-Newton. Both arms may be more distant than previously thought.<\/div>\n<\/div>\n<div class=\"hds-credits\">\n<div>NASA\/CXC\/A. Hobart<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>A new result using NASA\u2019s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy\u2019s structure.<\/p>\n<p>A team of astronomers made this discovery by making precise measurements of distances to dust clouds in the Milky Way\u2019s spiral arms using data from both NASA\u2019s Chandra and XMM-Newton, an ESA (European Space Agency) mission with NASA contributions. The results are described in a new paper published Wednesday in the Astronomy &#038; Astrophysics journal.<\/p>\n<p>The researchers determined the distances by studying rings around gamma-ray bursts, some of the brightest bursts of light in the universe, which arise from the collapse of massive stars or the merger of neutron stars. They are located at enormous distances, well beyond the confines of our galaxy.<\/p>\n<div id=\"\" class=\"hds-media hds-module wp-block-image\">\n<div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-fit \" style=\"--hds-image-contain-bg:#ffffff;\"><a href=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=6000&#038;h=4000&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"6000\" height=\"4000\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=6000&#038;h=4000&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"An artist\u2019s concept showing the Milky Way galaxy as seen from above, with the estimated positions of spiral arms based on previous data, in blue. Overlaid on this is an updated view of the Milky Way showing different positions for the two outermost spiral arms, shown in red and bordered by dashed lines. Both arms may be more distant than previously thought, based on newly processed X-ray data from Chandra and XMM.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"eager\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=6000&#038;h=4000&#038;fit=crop&#038;crop=faces%2Cfocalpoint 6000w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=300&#038;h=200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=768&#038;h=512&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=1024&#038;h=683&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=1536&#038;h=1024&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=2048&#038;h=1365&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=400&#038;h=267&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=600&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=900&#038;h=600&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=1200&#038;h=800&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_illus2.jpg?w=2000&#038;h=1333&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 6000px) 100vw, 6000px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">An artist\u2019s concept showing the Milky Way galaxy as seen from above, with the estimated positions of spiral arms based on previous data, in blue. Overlaid on this is an updated view of the Milky Way showing different positions for the two outermost spiral arms, shown in red and bordered by dashed lines. Both arms may be more distant than previously thought, based on newly processed X-ray data from Chandra and XMM.<\/div>\n<div class=\"hds-credits\">NASA\/CXC\/SAO\/M.Weiss<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p>This distance measurement technique capitalized on the phenomenon of light echoes, where the light from the gamma-ray burst bounced off dust clouds in the spiral arms. The diameters of the rings in X-rays give the distances to Earth, with larger rings being generated by dust clouds closer to us.<\/p>\n<p>\u201cThis is a very direct way \u2013 relying only on geometry \u2013 to precisely measure distances to the Milky Way\u2019s spiral arms,\u201d said Beatrice Vaia, who led the study while a PhD student in a joint program between Scuola Universitaria Superiore IUSS Pavia and University of Trento in Italy. \u201cMost other methods rely on assumptions about how the Milky Way rotates, which become increasingly uncertain in the outer regions of our galaxy.\u201d<\/p>\n<p>Despite a century of awareness of the Milky Way\u2019s spiral arms, astronomers are still working toward precise characterization of its arms because of Earth\u2019s position within one. Dust and gas also block the view to other arms.<\/p>\n<p>The researchers used three different gamma-ray bursts to determine the distances to three spiral arms in the Milky Way. In order of increasing distances from the Galactic Center, they are the Perseus, the Outer, and the Outer Scutum-Centaurus arms. Along the direction of one of the bursts, they found that both the Outer and Outer Scutum-Centaurus arms are about 10% more distant than astronomers previously thought.<\/p>\n<p>\u201cThe differences are small, but any revision of these distances is important because they are so fundamental for understanding our galaxy,\u201d said co-author Ilaria Fornasiero, who was a PhD student in the same program as the leading author. \u201cFor example, this could mean that astronomers have to revise estimates of the mass of the galaxy, because that affects how wide the arms stretch.\u201d<\/p>\n<div id=\"\" class=\"hds-media hds-module wp-block-image\">\n<div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-fit \" style=\"--hds-image-contain-bg:#ffffff;\"><a href=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=9872&#038;h=9324&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" rel=\"noopener\"><img decoding=\"async\" width=\"9872\" height=\"9324\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=9872&#038;h=9324&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"The images include X-ray data from Chandra and optical data from Pan-STARRS. The composite image shows X-ray rings generated by a gamma-ray burst (GRB), a bright X-ray source located outside our galaxy. In a phenomenon called light echoes, the X-rays from the GRB bounced off dust clouds in the spiral arms of our galaxy. The diameters of the rings in the Chandra data give the distances of the dust clouds to Earth, with larger rings being generated by dust clouds closer to us. The GRB is located at the center of the circles defining the rings, to the left of the X-ray data outlined by the white square.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=9872&#038;h=9324&#038;fit=crop&#038;crop=faces%2Cfocalpoint 9872w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=300&#038;h=283&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=768&#038;h=725&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=1024&#038;h=967&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=1536&#038;h=1451&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=2048&#038;h=1934&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=400&#038;h=378&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=600&#038;h=567&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=900&#038;h=850&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=1200&#038;h=1133&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/arms_rings.jpg?w=2000&#038;h=1889&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 9872px) 100vw, 9872px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">The images include X-ray data from Chandra and optical data from Pan-STARRS. The composite image shows X-ray rings generated by a gamma-ray burst (GRB), a bright X-ray source located outside our galaxy. In a phenomenon called light echoes, the X-rays from the GRB bounced off dust clouds in the spiral arms of our galaxy. The diameters of the rings in the Chandra data give the distances of the dust clouds to Earth, with larger rings being generated by dust clouds closer to us. The GRB is located at the center of the circles defining the rings, to the left of the X-ray data outlined by the white square.<\/div>\n<div class=\"hds-credits\">X-ray: NASA\/CXC\/INAF\/B. Vaia et al.; Optical: Pan-STARRS; Image processing: NASA\/CXC\/SAO\/N.Wolk &#038; P.Edmonds<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p>The team also used their data to estimate that the dust cloud in the most distant arm is about 3,500 light-years wide. These findings show that their measurements apply to the full thickness of the spiral arm, rather than a random, isolated dust cloud that may not fully be representative of the arm\u2019s location.<\/p>\n<p>While this technique provided major improvements in accuracy according to the researchers, it may be difficult to use it for further measurements because bright gamma-ray bursts that are visible through the plane of the galaxy are rare.<\/p>\n<p>\u201cWe\u2019re relying on the universe to provide us with these events, and so far, over 25 years, we\u2019ve only found a handful that we can use,\u201d said co-author Andrea Tiengo of Scuola Universitaria Superiore IUSS Pavia. \u201cThat said, we will continue to be on the lookout for more.\u201d<\/p>\n<p>NASA\u2019s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory\u2019s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.<\/p>\n<p><a href=\"https:\/\/chandra.cfa.harvard.edu\/photo\/2026\/arms\/\" rel=\"noopener\">Read more from NASA\u2019s Chandra X-ray Observatory<\/a><\/p>\n<p>To learn more about Chandra, visit:<\/p>\n<p class=\"has-text-align-center\"><a href=\"https:\/\/nasa.gov\/chandra\" rel=\"noopener\">https:\/\/nasa.gov\/chandra<\/a><\/p>\n<p>To learn more about NASA\u2019s Chandra mission, visit:<\/p>\n<p class=\"has-text-align-center\"><a href=\"https:\/\/nasa.gov\/chandra\" rel=\"noopener\">https:\/\/nasa.gov\/chandra<\/a><\/p>\n<h2 class=\"wp-block-heading\"><strong>Visual Description<\/strong><\/h2>\n<p>This release features a short video and a series of images, all related to an updated understanding of our home galaxy\u2019s structure. By studying rings of X-ray light echoes, researchers now believe that two of the Milky Way\u2019s spiral arms may be more distant from the center of the galaxy than previously thought.<\/p>\n<p>The updated understanding of the structure of the Milky Way is highlighted in a short video, which compares two artist concept images. In both images, our spiral Milky Way galaxy is shown face-on. It has a bright white core with several arms that spiral out from the center, like long thin clouds corkscrewing counterclockwise. The two longest arms make a full rotation of the spiral galaxy, and curve all the way around to the upper right of the images.<\/p>\n<p>The first image in the video shows the previous understanding of the Milky Way. Here, the two longest arms are curled around the core in a fairly tight spiral. In the second image, which represents the updated understanding, the two longest arms are more loosely spiraled. Visually, this means there is more open space between the curving arms, which are further away from the bright galaxy core. The video fades back and forth between the two artist concept images to illustrate the structural differences between the two understandings.<\/p>\n<p>These findings are further shown by a static image which overlays the new understanding on top of the earlier understanding. In this artist\u2019s concept illustration, dotted lines and different colors are used to differentiate between the two.<\/p>\n<p>A team of astronomers made this discovery by studying gamma-ray bursts that bounce off of dust clouds in the galaxy\u2019s spiral arms. The resulting rings of X-rays, known as light echoes, were detected and mapped by NASA\u2019s Chandra X-ray Observatory and ESA\u2019s XMM-Newton. In a supplemental data image, the light echoes resemble concentric arches of neon blue dots trailing across a speckled sky.<\/p>\n<p>Identifying the position of the Milky Way\u2019s spiral arms through X-ray light echoes has allowed astronomers to use geometry, rather than assumptions about galaxy rotation, to better understand the structure of our galaxy.<\/p>\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 article_a hds-module hds-module-full alignfull wp-block-nasa-blocks-credits-and-details\">\n<section class=\"padding-x-0 padding-top-5 padding-bottom-2 desktop:padding-top-7 desktop:padding-bottom-9\">\n<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n<div class=\"grid-col-12 desktop:grid-col-2 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n<div class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Share<\/h2>\n<\/p>\n<\/div>\n<div 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class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Details<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Last Updated<\/div>\n<\/p>\n<\/div>\n<div class=\"grid-col-8\">Jul 01, 2026<\/div>\n<\/p>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Editor<\/div>\n<\/div>\n<div class=\"grid-col-8\">Lee Mohon<\/div>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Contact<\/div>\n<\/div>\n<div class=\"grid-col-8\">\n<div class=\"margin-bottom-3\">\n<div>Joel Wallace<\/div>\n<div><\/div>\n<\/div>\n<div class=\"margin-bottom-3\">\n<div>Megan Watzke<\/div>\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-row\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Location<\/div>\n<\/div>\n<div class=\"grid-col-8\">Marshall Space Flight Center<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n<div class=\"padding-top-3 border-top-1px border-color-carbon-black \">\n<div class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Related Terms<\/h2>\n<\/div>\n<ul class=\"article-tags\">\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/mission\/chandra\" rel=\"noopener\">Chandra X-Ray Observatory<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/astrophysics\/\" rel=\"noopener\">Astrophysics<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/universe\/galaxies\/\" rel=\"noopener\">Galaxies<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/category\/centers-and-facilities\/marshall\/marshall-science-research-and-projects\/marshall-astrophysics\/\" rel=\"noopener\">Marshall Astrophysics<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/marshall-space-flight-center\/\" rel=\"noopener\">Marshall Space Flight Center<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/category\/universe\/galaxies\/milky-way\/\" rel=\"noopener\">The Milky Way<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/universe\/\" rel=\"noopener\">The Universe<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 nasa_template_article_b hds-module hds-module-full alignfull wp-block-nasa-blocks-credits-and-details\">\n<section class=\"padding-x-0 padding-top-5 padding-bottom-2 desktop:padding-top-7 desktop:padding-bottom-9\">\n<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n<div class=\"grid-col-12 desktop:grid-col-2 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n<div class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Share<\/h2>\n<\/p>\n<\/div>\n<div class=\"padding-bottom-2\">\n<ul class=\"social-icons social-icons-round\">\n<li class=\"social-icon social-icon-x\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/x.com\/intent\/tweet?via=NASA&#038;text=NASA%E2%80%99s%20Chandra%20Examines%20Milky%20Way%20at%20Arms%E2%80%99%20Length&#038;%23038;url=https%3A%2F%2Fscience.nasa.gov%2Fmissions%2Fchandra%2Fnasas-chandra-examines-milky-way-at-arms-length%2F\" aria-label=\"Share on X.\"><br \/>\n\t\t\t\t\t\t\t\t<svg width=\"1200\" height=\"1227\" viewBox=\"0 0 1200 1227\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M714.163 519.284L1160.89 0H1055.03L667.137 450.887L357.328 0H0L468.492 681.821L0 1226.37H105.866L515.491 750.218L842.672 1226.37H1200L714.137 519.284H714.163ZM569.165 687.828L521.697 619.934L144.011 79.6944H306.615L611.412 515.685L658.88 583.579L1055.08 1150.3H892.476L569.165 687.854V687.828Z\" fill=\"white\"\/><\/svg><br \/>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n<li class=\"social-icon social-icon-facebook\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fscience.nasa.gov%2Fmissions%2Fchandra%2Fnasas-chandra-examines-milky-way-at-arms-length%2F\" aria-label=\"Share on Facebook.\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg><br \/>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n<li class=\"social-icon social-icon-linkedin\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&#038;url=https%3A%2F%2Fscience.nasa.gov%2Fmissions%2Fchandra%2Fnasas-chandra-examines-milky-way-at-arms-length%2F\" aria-label=\"Share on LinkedIn.\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\"\/><\/svg><br \/>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n<li class=\"social-icon social-icon-rss\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/feed\/\" aria-label=\"Subscribe to RSS feed.\"><br \/>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 800 800\" aria-hidden=\"true\"><path d=\"M493 652H392c0-134-111-244-244-244V307c189 0 345 156 345 345zm71 0c0-228-188-416-416-416V132c285 0 520 235 520 520z\"\/><circle cx=\"219\" cy=\"581\" r=\"71\"\/><\/svg><br \/>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n<div class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Details<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Last Updated<\/div>\n<\/p>\n<\/div>\n<div class=\"grid-col-8\">Jul 01, 2026<\/div>\n<\/p>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Editor<\/div>\n<\/div>\n<div class=\"grid-col-8\">Lee Mohon<\/div>\n<\/div>\n<div class=\"grid-row margin-bottom-3\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Contact<\/div>\n<\/div>\n<div class=\"grid-col-8\">\n<div class=\"margin-bottom-3\">\n<div>Joel Wallace<\/div>\n<div><\/div>\n<\/div>\n<div class=\"margin-bottom-3\">\n<div>Megan Watzke<\/div>\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-row\">\n<div class=\"grid-col-4\">\n<div class=\"subheading\">Location<\/div>\n<\/div>\n<div class=\"grid-col-8\">Marshall Space Flight Center<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n<div class=\"padding-top-3 border-top-1px border-color-carbon-black \">\n<div class=\"margin-bottom-2\">\n<h2 class=\"heading-14\">Related Terms<\/h2>\n<\/div>\n<ul class=\"article-tags\">\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/mission\/chandra\" rel=\"noopener\">Chandra X-Ray Observatory<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/astrophysics\/\" rel=\"noopener\">Astrophysics<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/universe\/galaxies\/\" rel=\"noopener\">Galaxies<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/category\/centers-and-facilities\/marshall\/marshall-science-research-and-projects\/marshall-astrophysics\/\" rel=\"noopener\">Marshall Astrophysics<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/marshall-space-flight-center\/\" rel=\"noopener\">Marshall Space Flight Center<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/category\/universe\/galaxies\/milky-way\/\" rel=\"noopener\">The Milky Way<\/a><\/li>\n<li class=\"article-tag\"><a href=\"https:\/\/science.nasa.gov\/universe\/\" rel=\"noopener\">The Universe<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 hds-module hds-module-full alignfull wp-block-nasa-blocks-related-articles\">\n<section class=\"hds-related-articles padding-x-0 padding-y-3 desktop:padding-top-7 desktop:padding-bottom-9\">\n<div class=\"w-100 grid-row grid-container maxw-widescreen padding-0 text-align-left\">\n<div class=\"margin-bottom-4\">\n<h2 style=\"max-width: 100%;\" class=\"width-full w-full maxw-full\">Explore More<\/h2>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/nasas-chandra-reveals-red-white-blue-universe-for-us-250th\/\" class=\"color-carbon-black\" rel=\"noopener\"><\/p>\n<div class=\"margin-bottom-2\">\n<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"4200\" height=\"4200\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=4200&#038;h=4200&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=4200&#038;h=4200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 4200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=150&#038;h=150&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=300&#038;h=300&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=768&#038;h=768&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=1024&#038;h=1024&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=1536&#038;h=1536&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=2048&#038;h=2048&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=50&#038;h=50&#038;fit=crop&#038;crop=faces%2Cfocalpoint 50w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=100&#038;h=100&#038;fit=crop&#038;crop=faces%2Cfocalpoint 100w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=200&#038;h=200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=400&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=600&#038;h=600&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=900&#038;h=900&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=1200&#038;h=1200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/250th_ngc4736.jpg?w=2000&#038;h=2000&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 4200px) 100vw, 4200px\" \/><\/figure>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"padding-right-0 desktop:padding-right-10\">\n<div class=\"subheading margin-bottom-1\">7 min read<\/div>\n<div class=\"margin-bottom-1\">\n<h3 class=\"related-article-title\">NASA\u2019s Chandra Reveals \u2018Red, White, Blue\u2019 Universe for US 250th<\/h3>\n<\/div>\n<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\"><br \/>\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg><br \/>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<span class=\"\"><br \/>\n\t\t\t\t\t\t\t\t\t\t1 day ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/nasas-chandra-discovers-possible-supernova-remnant-in-galactic-center\/\" class=\"color-carbon-black\" rel=\"noopener\"><\/p>\n<div class=\"margin-bottom-2\">\n<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"300\" height=\"264\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg 6000w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=300,264 300w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=768,676 768w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=1024,902 1024w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=1536,1353 1536w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=2048,1804 2048w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=400,352 400w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=600,528 600w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=900,793 900w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=1200,1057 1200w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2026\/06\/sgrc.jpg?resize=2000,1761 2000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"padding-right-0 desktop:padding-right-10\">\n<div class=\"subheading margin-bottom-1\">5 min read<\/div>\n<div class=\"margin-bottom-1\">\n<h3 class=\"related-article-title\">NASA\u2019s Chandra Discovers Possible Supernova Remnant in Galactic Center<\/h3>\n<\/div>\n<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\"><br \/>\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg><br \/>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<span class=\"\"><br \/>\n\t\t\t\t\t\t\t\t\t\t3 weeks ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n<div class=\"grid-col-12 desktop:grid-col-4 margin-bottom-4 desktop:margin-bottom-0 desktop:padding-right-3\">\n\t\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/nasa-finds-young-stars-dim-in-x-rays-surprisingly-quickly\/\" class=\"color-carbon-black\" rel=\"noopener\"><\/p>\n<div class=\"margin-bottom-2\">\n<div class=\"hds-cover-wrapper cover-hover-zoom bg-carbon-black minh-mobile\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"3909\" height=\"3366\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=3909&#038;h=3366&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-medium size-medium\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=3909&#038;h=3366&#038;fit=crop&#038;crop=faces%2Cfocalpoint 3909w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=300&#038;h=258&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=768&#038;h=661&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=1024&#038;h=882&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=1536&#038;h=1323&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=2048&#038;h=1764&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=400&#038;h=344&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=600&#038;h=517&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=900&#038;h=775&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=1200&#038;h=1033&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/missions\/chandra\/2026\/dimming_ngc2353.jpg?w=2000&#038;h=1722&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 3909px) 100vw, 3909px\" \/><\/figure>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"padding-right-0 desktop:padding-right-10\">\n<div class=\"subheading margin-bottom-1\">5 min read<\/div>\n<div class=\"margin-bottom-1\">\n<h3 class=\"related-article-title\">NASA Finds Young Stars Dim in X-rays Surprisingly Quickly<\/h3>\n<\/div>\n<div class=\"display-flex flex-align-center label related-article-label margin-bottom-1 color-carbon-60\">\n\t\t\t\t\t\t\t\t\t<span class=\"display-flex flex-align-center margin-right-2\"><br \/>\n\t\t\t\t\t\t\t\t\t\t<svg version=\"1.1\" class=\"square-2 margin-right-1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"16px\" height=\"16px\" viewBox=\"0 0 16 16\" style=\"enable-background:new 0 0 16 16;\" xml:space=\"preserve\"><g><g><path d=\"M8,0C3.5,0-0.1,3.7,0,8.2C0.1,12.5,3.6,16,8,16c4.4,0,8-3.6,8-8C16,3.5,12.4,0,8,0z M8,15.2 C4,15.2,0.8,12,0.8,8C0.8,4,4,0.8,8,0.8c3.9,0,7.2,3.2,7.2,7.1C15.2,11.9,12,15.2,8,15.2z\"\/><path d=\"M5.6,12c0.8-0.8,1.6-1.6,2.4-2.4c0.8,0.8,1.6,1.6,2.4,2.4c0-2.7,0-5.3,0-8C8.8,4,7.2,4,5.6,4 C5.6,6.7,5.6,9.3,5.6,12z\"\/><\/g><\/g><\/svg><br \/>\n\t\t\t\t\t\t\t\t\t\t<span>Article<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<\/span><br \/>\n\t\t\t\t\t\t\t\t\t<span class=\"\"><br \/>\n\t\t\t\t\t\t\t\t\t\t3 months ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/section>\n<\/div>\n<div id=\"\" class=\"hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full alignfull wp-block-nasa-blocks-topic-cards\">\n<div class=\"grid-container grid-container-block-lg padding-x-0\">\n<div class=\"grid-row flex-align-center margin-bottom-3\">\n<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n<div class=\"label color-carbon-60 margin-bottom-2\">Keep Exploring<\/div>\n<h2 class=\"heading-36 line-height-sm\">Discover More Topics From NASA<\/h2>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-gap-2 hds-topic-cards-wrapper\">\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/3d-resources\/chandra-x-ray-observatory\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Chandra X-ray Observatory<\/span><br \/>\n\t\t\t\t\t\t\t\t<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>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/3d\/resources\/model\/chandra-x-ray-observatory\/Chandra%20X-ray%20Observatory.png?w=1920&#038;h=1080&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/mission\/webb\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>James Webb Space Telescope<\/span><br \/>\n\t\t\t\t\t\t\t\t<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><br \/>\n\t\t\t\t\t\t\t<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the\u2026<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1041\" height=\"1032\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?w=1041\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png 1041w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=150,150 150w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=300,297 300w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=768,761 768w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=1024,1015 1024w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=50,50 50w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=100,100 100w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=400,397 400w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=600,595 600w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2024\/05\/jwst_artist_concept_0.png?resize=900,892 900w\" sizes=\"auto, (max-width: 1041px) 100vw, 1041px\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/hubble\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Hubble Space Telescope<\/span><br \/>\n\t\t\t\t\t\t\t\t<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><br \/>\n\t\t\t\t\t\t\t<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1512\" height=\"1536\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?w=1512\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg 4031w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=295,300 295w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=768,780 768w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=1008,1024 1008w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=1512,1536 1512w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=2016,2048 2016w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=50,50 50w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=394,400 394w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=591,600 591w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=886,900 886w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=1181,1200 1181w, https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/07\/hubble-space-telescope-hst-6.jpg?resize=1969,2000 1969w\" sizes=\"auto, (max-width: 1512px) 100vw, 1512px\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/nasas-chandra-examines-milky-way-at-arms-length\/#\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Solar System<\/span><br \/>\n\t\t\t\t\t\t\t\t<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>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" loading=\"lazy\" width=\"1536px\" height=\"1536px\" data-no-id=\"true\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" srcset=\"https:\/\/science.nasa.gov\/wp-content\/plugins\/nasa-blocks\/assets\/images\/topic-cards\/topic-card-sample-4.jpg 1536w\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" src=\"https:\/\/science.nasa.gov\/wp-content\/plugins\/nasa-blocks\/assets\/images\/topic-cards\/topic-card-sample-4.jpg\" ><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A new result using NASA\u2019s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy\u2019s structure. A team of astronomers made this discovery by making precise measurements of distances to dust clouds [\u2026]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[15612,15670,15757,15672,15673,15769,15638],"tags":[],"class_list":["post-468052","post","type-post","status-publish","format-standard","hentry","category-astrophysics","category-chandra-x-ray-observatory","category-galaxies","category-marshall-astrophysics","category-marshall-space-flight-center","category-the-milky-way","category-the-universe"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"A new result using NASA\u2019s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. 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This finding may lead astronomers to adjust their understanding of our home galaxy\u2019s structure. A team of astronomers made this discovery by making precise measurements of distances to dust clouds [\u2026]\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.vibewire.com.au\/?p=468052\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-07-01T20:17:20+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-07-01T20:17:20+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@VibewireCentral\" \/>\n\t\t<meta name=\"twitter:title\" content=\"NASA\u2019s Chandra Examines Milky Way at Arms\u2019 Length - VibeWire Magazine\" \/>\n\t\t<meta name=\"twitter:description\" content=\"A new result using NASA\u2019s Chandra X-ray Observatory shows that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This finding may lead astronomers to adjust their understanding of our home galaxy\u2019s structure. 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