The world's biggest solar telescope caught vortexes on the Sun's surface

Ars Technica
By Jacek KrywkoAug 7, 2026, 9:20 am99 pts
Wherever two fluids slide past each other at different speeds, the boundary between them buckles, then curls, then rolls up into vortexes. It’s called the Kelvin-Helmholtz instability, and the physics behind it was worked out in the late 1860s. We know this instability explains why wind causes ripples on the…

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