{
  "id": 16703761,
  "title": "APOD: 2026 October 27 – Noctilucent Clouds over Sweden",
  "url": "https://urgent.news/2026/10/27/apod-2026-october-27-noctilucent-clouds-over-sweden",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-27T04:05:00.000Z",
  "source": {
    "name": "NASA Science",
    "slug": "nasa-science",
    "url": "https://science.nasa.gov/image-article/apod-2026-october-27-noctilucent-clouds-over-sweden/"
  },
  "original_language": "en",
  "account": "Today's Astronomy Picture of the Day reveals Noctilucent Clouds over Sweden. The phenomenon occurs when it's night on the ground yet day in the air. As the Earth rotates and the Sun sets, the sunlight still reaches clouds located high above. Noctilucent clouds, also known as polar mesospheric clouds, are the highest in the atmosphere and were photographed in early August above Linköping, Sweden. They appear silhouetted against a backdrop of green grass and stark trees. Despite being too dim to see under normal circumstances, these clouds can be visible just after sunset during the summer, illuminated by sunlight from below the horizon. The exact formation and evolution of noctilucent clouds remains a subject of ongoing research.",
  "summary": "The post APOD: 2026 October 27 – Noctilucent Clouds over Sweden appeared first on NASA Science .",
  "key_points": [
    "Noctilucent clouds photographed over Linköping, Sweden",
    "Clouds appear silhouetted against green grass and trees",
    "Visible just after sunset during summer"
  ],
  "editors_take": "The visibility of these high-altitude polar mesospheric clouds after sunset offers researchers a unique visual window into the atmospheric processes occurring at the very edge of space.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}