{"id":379735,"date":"2026-01-20T05:47:08","date_gmt":"2026-01-20T05:47:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/379735\/"},"modified":"2026-01-20T05:47:08","modified_gmt":"2026-01-20T05:47:08","slug":"apod-2026-january-19-ctb-1-the-medulla-nebula","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/379735\/","title":{"rendered":"APOD: 2026 January 19 \u2013 CTB 1: The Medulla Nebula"},"content":{"rendered":"

APOD: 2026 January 19 \u2013 CTB 1: The Medulla Nebula <\/p>\n

Discover the cosmos!<\/a>
\nEach day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.\n<\/p>\n

2026 January 19
\n

\n\"A<\/a>\n<\/p>\n

CTB 1: The Medulla Nebula
Image Credit:
\nPierre Konzelmann<\/a><\/p>\n

Explanation:
\nWhat powers this unusual nebula?<\/p>\n

CTB 1 is the expanding gas shell that was left when a massive star toward the constellation of Cassiopeia<\/a>
\nexploded about 10,000 years ago.<\/p>\n

The star likely detonated when it ran out of elements, near its core, that could create
\nstabilizing pressure<\/a> with
\nnuclear fusion<\/a>.<\/p>\n

The resulting
\nsupernova remnant<\/a>, nicknamed the Medulla Nebula for its
\nbrain-like shape<\/a>, still glows in
\nvisible light<\/a>
\nbecause of the heat generated by its collision with confining
\ninterstellar gas<\/a>. <\/p>\n

Why
\nthe nebula<\/a> also glows in
\nX-ray light<\/a>, though,
\nremains a topic of research<\/a>.<\/p>\n

One hypothesis holds that an energetic
\npulsar<\/a>
\nwas created and powers the nebula with a fast outwardly moving wind.<\/p>\n

Following this lead, a pulsar was
\nfound<\/a> in
\nradio waves<\/a>
\nthat appears to have
\nbeen expelled<\/a> by the
\nsupernova explosion<\/a>
\nat over 1000 kilometers per second. <\/p>\n

Although the Medulla Nebula<\/a> appears as large as a
\nfull moon<\/a>,
\nit is so faint that it took 84-hours of exposure with
\na small telescope in
\nTexas<\/a>,
\nUSA<\/a>, to create the
\nfeatured image<\/a>.<\/p>\n

Tomorrow’s picture: volcano world<\/a> <\/p>\n

<<\/a>
\n| Archive<\/a>
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\n| ><\/a><\/p>\n

\n Authors & editors:
\nRobert Nemiroff<\/a>
\n(MTU<\/a>) &
\nJerry Bonnell<\/a> (UMCP<\/a>)
NASA Official: Amber Straughn
\nSpecific rights apply<\/a>.
NASA Web Privacy<\/a>,
\nAccessibility<\/a>,
\nNotices<\/a>;
A service of:
\nASD<\/a> at
\nNASA<\/a> \/
\nGSFC<\/a>,
\n
NASA Science Activation<\/a>
\n
& Michigan Tech. U.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"APOD: 2026 January 19 \u2013 CTB 1: The Medulla Nebula Discover the cosmos! Each day a different image…\n","protected":false},"author":2,"featured_media":379736,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[144258,22826,90,416,144259,56,54,55],"class_list":{"0":"post-379735","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-ctb-1","9":"tag-nebula","10":"tag-science","11":"tag-space","12":"tag-supernova-remnant","13":"tag-uk","14":"tag-united-kingdom","15":"tag-unitedkingdom"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/379735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=379735"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/379735\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/379736"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=379735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=379735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=379735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}