{"id":215146,"url":"https://www.kudos365.com/news/215146-noctilucent-clouds-over-sweden","short_url":"https://www.kudos365.com/news/215146","headline":"Noctilucent Clouds over Sweden","content":"\u003cp\u003eNASA Astronomy Picture of the Day:\u003c/p\u003e\n\n\u003cp\u003eSometimes it's night on the ground but day in the air. As the Earth rotates to eclipse the Sun, sunset rises up from the ground. Therefore, at sunset on the ground, sunlight still shines on clouds above. Under usual circumstances, a pretty sunset might be visible, but unusual noctilucent clouds float so high up they can be seen well after dark. Normally too dim to be seen, they may become visible just after sunset during the summer when illuminated by sunlight from below the horizon. Noctilucent clouds are the highest clouds and are known more technically as polar mesospheric clouds. Featured here as they appeared in early August 2026, a network of blue noctilucent clouds was captured in the distant sky above a field of green grass near Linköping, Sweden, with trees in stark silhouette across the horizon. Much about noctilucent clouds has been discovered only in the past two decades, and how they form and evolve remains a topic of active research.\u003c/p\u003e\n\n\n\u003cp\u003ePhoto by V. Höfer, D. Večerník \u0026amp; B. Večerníková\u003c/p\u003e","content_plain":"NASA Astronomy Picture of the Day:\n\nSometimes it's night on the ground but day in the air. As the Earth rotates to eclipse the Sun, sunset rises up from the ground. Therefore, at sunset on the ground, sunlight still shines on clouds above. Under usual circumstances, a pretty sunset might be visible, but unusual noctilucent clouds float so high up they can be seen well after dark. Normally too dim to be seen, they may become visible just after sunset during the summer when illuminated by sunlight from below the horizon. Noctilucent clouds are the highest clouds and are known more technically as polar mesospheric clouds. Featured here as they appeared in early August 2026, a network of blue noctilucent clouds was captured in the distant sky above a field of green grass near Linköping, Sweden, with trees in stark silhouette across the horizon. Much about noctilucent clouds has been discovered only in the past two decades, and how they form and evolve remains a topic of active research.\n\n\nPhoto by V. Höfer, D. Večerník \u0026amp; B. Večerníková","published_at":"2026-10-27T14:16:00-07:00","updated_at":"2026-10-27T22:07:04-07:00","author":{"type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"description":"Stay up-to-date with Specola on Kudos365. View their photo published Oct/27/2026 on Science and Technology. Browse your favorite topics and share your expertise, too.","type":"photo","image":"https://k365pi.imgix.net/site/apod/generated/52642c57-a3e4-4795-9600-3cf226586e45.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","likes_count":3,"categories":[{"name":"Science and Technology","url":"https://www.kudos365.com/categories/986-science-and-technology"}],"schema":{"@context":"https://schema.org","@type":"CreativeWork","url":"https://www.kudos365.com/news/215146-noctilucent-clouds-over-sweden","headline":"Noctilucent Clouds over Sweden","image":"https://k365pi.imgix.net/site/apod/generated/52642c57-a3e4-4795-9600-3cf226586e45.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","author":{"@type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"datePublished":"2026-10-27T14:16:00-07:00","interactionStatistic":[{"@type":"InteractionCounter","interactionType":"https://schema.org/LikeAction","userInteractionCount":3}],"subjectOf":[{"@type":"Thing","name":"Science and Technology","url":"https://www.kudos365.com/categories/986-science-and-technology"}]}}