Phys.org - #Thunderstorms conjure ghostly #coronae in treetops, observed outdoors for the first time
"charge of a thunderstorm overhead induces an opposite charge in the ground below. That ground charge, attracted to the one above, travels toward the highest point it can reach … glows lasted up to 3 seconds, often hopping from leaf to leaf.
…
'It'd probably look like a pretty cool light show, as if thousands of UV-flashing fireflies descended on the treetops.'"
https://phys.org/news/2026-02-thunderstorms-conjure-ghostly-coronae-treetops.html
