{"id":7222,"date":"2026-03-03T09:40:51","date_gmt":"2026-03-03T08:40:51","guid":{"rendered":"https:\/\/kosmos-os.de\/?page_id=7222"},"modified":"2026-03-22T16:48:59","modified_gmt":"2026-03-22T15:48:59","slug":"nachtleuchtende-wolken","status":"publish","type":"page","link":"https:\/\/kosmos-os.de\/en\/atmosphaerische-phaenomene\/nachtleuchtende-wolken\/","title":{"rendered":"Noctilucent clouds"},"content":{"rendered":"<p>The summer sun has long since set. The first stars appear. Night falls. Nevertheless, on some summer evenings you can see bluish-white, finely structured clouds to the north. These are the so-called noctilucent clouds. Normally, clouds form in the troposphere at altitudes of up to about 10 km. The noctilucent clouds have their realm in much higher areas of the earth's atmosphere, in the so-called mesopause \u2013 at an altitude of well over 80 km. Why clouds form at all at this enormous altitude has not really been clarified so far. \"Condensation nuclei\" are needed to form clouds, and where they come from at this altitude is still unknown \u2013 they could come from burned-up meteors. Because the clouds are so high, they are illuminated by the sun long after sunset until well into the night, showing us the unreal spectacle of light in the sky.<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"559\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/29.6.25-NLC-ueber-Hasbergen-2.jpeg\" alt=\"\" class=\"wp-image-7293\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/29.6.25-NLC-ueber-Hasbergen-2.jpeg 720w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/29.6.25-NLC-ueber-Hasbergen-2-300x233.jpeg 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/03\/29.6.25-NLC-ueber-Hasbergen-2-15x12.jpeg 15w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\"><em><em>Noctilucent clouds<\/em> above Hasbergen on 29.6.25, Photo: Anja Drews<\/em><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"945\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-9.png\" alt=\"\" class=\"wp-image-7225\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-9.png 631w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-9-200x300.png 200w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-9-8x12.png 8w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><figcaption class=\"wp-element-caption\"><em>Noctilucent clouds and above, far away the comet Neowise on 11.07.2020, Image: Thomas Grunge<\/em><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"628\" height=\"418\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-10.png\" alt=\"\" class=\"wp-image-7226\" srcset=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-10.png 628w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-10-300x200.png 300w, https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/image-10-18x12.png 18w\" sizes=\"auto, (max-width: 628px) 100vw, 628px\" \/><figcaption class=\"wp-element-caption\"><em><em>Noctilucent clouds<\/em> \u00fcber Icker, Aufnahme: Werner W\u00f6hrmann<\/em><\/figcaption><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"674\" height=\"256\" src=\"https:\/\/kosmos-os.de\/wp-content\/uploads\/2026\/02\/NLC.gif\" alt=\"\" class=\"wp-image-7227\"\/><figcaption class=\"wp-element-caption\"><em>A time-lapse video, recording: Thomas Grunge<\/em><\/figcaption><\/figure>\n\n\n\n<p><br>You can find our report about NLCs here:<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/kosmos-os.de\/en\/leuchtende-nachtwolken-nlc\/\">https:\/\/kosmos-os.de\/leuchtende-nachtwolken-nlc\/<\/a><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p>If you want to know more about this phenomenon, you can find more information about this phenomenon here:<\/p>\n\n\n\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Noctilucent_cloud\">https:\/\/en.wikipedia.org\/wiki\/Noctilucent_cloud<\/a><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/kosmos-os.de\/en\/atmosphaerische-phaenomene\/\">-&gt; Zur\u00fcck zu den Atmosp\u00e4rischen Ph\u00e4nomenen<\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Die Sommersonne ist schon lange untergegangen. Die ersten Sterne zeigen sich. Es wird Nacht. Trotzdem kann man an manchen Sommerabenden nach Norden hin bl\u00e4ulich-wei\u00dfe, feinstrukturierte Wolken sehen. Das sind die sog. nachtleuchtenden Wolken. Normalerweise entstehen Wolken in der Troposph\u00e4re in H\u00f6hen bis etwa 10 km. Die nachtleuchtenden Wolken haben ihr Reich in viel h\u00f6heren Bereichen [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":7120,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","footnotes":""},"class_list":["post-7222","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/7222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/comments?post=7222"}],"version-history":[{"count":10,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/7222\/revisions"}],"predecessor-version":[{"id":7426,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/7222\/revisions\/7426"}],"up":[{"embeddable":true,"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/pages\/7120"}],"wp:attachment":[{"href":"https:\/\/kosmos-os.de\/en\/wp-json\/wp\/v2\/media?parent=7222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}