{
  "id": 17817417,
  "title": "From Union Glacier to Death Valley: 10 tough races for long-distance runners",
  "url": "https://urgent.news/2026/11/02/from-union-glacier-to-death-valley-10-tough-races-for-long-distance",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-02T15:42:46.000Z",
  "source": {
    "name": "Quartz",
    "slug": "quartz",
    "url": "https://qz.com/tough-marathons-world-antarctica-everest"
  },
  "original_language": "en",
  "account": null,
  "summary": "These 10 tough marathons around the world, from Antarctica's Union Glacier to Everest Base Camp, test runners with ice, altitude, desert heat, stone steps and wildlife",
  "key_points": [],
  "editors_take": null,
  "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."
}