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  "publishedAt": "2026-02-25T09:03:08.000Z",
  "site": "https://upstract.com",
  "textContent": "Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time For the first time, researchers have observed and measured weak electrical discharges, known as coronae, on trees during thunderstorms. A new study describes the near-invisible sparkles appearing similarly on…",
  "title": "Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time"
}