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National Science Foundation
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2026-08-07latest coverage
Astronomymost-covered category
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Science & Discovery
Sharpest-Ever Sun Images Reveal Swirling Instabilities Hiding in Plain Sight
The Inouye Solar Telescope's highest-resolution images yet show Kelvin-Helmholtz vortices are everywhere on the Sun's surface, not rare events — a discovery that may help crack the decades-old mystery of why the corona is millions of degrees hotter than the surface below it.
