APOD: 2026 August 6 – New Sharpest Image of the Sun Uncovers Instability

NASA reports that the Inouye Solar Telescope in Hawaii has captured the sharpest image of the Sun ever recorded in visible light—and it's revealing something long theorized but never before seen. Kelvin-Helmholtz instability appears at the edges of solar granules, where streams of magnetic plasma flowing past each other create waves and swirls. The new image resolves details city-sized across an area spanning Earth's full radius. Scientists say understanding this instability could help explain how the Sun transfers energy and magnetic fields, and may shed light on what heats the Sun's outer corona.

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