Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time https://phys.org/news/2026-02-thunderstorms-conjure-ghostly-coronae-treetops.html paper: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119591 "For the first time, researchers have observed and measured weak electrical discharges on #trees during #thunderstorms. A new study describes the near-invisible sparkles appearing similarly on branches of several #tree species... implying that thunderstorms may paint entire canopies with a scintillating blue glow, too faintly for human eyes to see"