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

APOD Science APOD APOD: 2026 August 6 – New… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. New Sharpest Image of the Sun Uncovers Instability Explanation: What does the new sharpest image of our Sun show?

Instability. To be clear, a certain kind of interactive process called the Kelvin-Helmholtz instability (KHI). This instability can create waves and swirls when two streams flow past each other — in this case variable streams of solar magnetic plasma .

Long hypothesized to occur on the Sun’s surface , KHI streaks and swirls were confirmed in just-released dramatic high-resolution images taken recently by the Inouye Solar Telescope in Hawaii , USA . The featured false-yellow image , actually taken in deep blue, is the highest resolution image yet of the Sun in visible light . It spans about the radius of the Earth , but its finest details are city sized.

Visible are several smooth tops of changing solar granules , while the edges of the flower-like structures have been found to harbor multiple KHI swirls . Future research may investigate how the KHI helps move energy, magnetic fields, and may even heat the surrounding solar corona . Tomorrow’s picture: Rubin’s COSMOS Date August 6, 2026 Credit NSF , NSO , AURA , MPS , Inouye Tel Authors & editors: Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti, Keighley Rockcliffe A service of: ASD at NASA / GSFC , NASA Science Activation & Michigan Tech.

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