GoKawiilScientists using the U.S. National Science Foundation Daniel K. Inouye Solar Telescope have made a major breakthrough in solar physics, discovering Kelvin-Helmholtz Instability on the surface of the Sun — a finding that could help explain explosive solar activity and other solar phenomena.
SUMMARY: The U.S. National Science Foundation National Solar Observatory (NSF NSO) announced today a major breakthrough in solar physics. Using the world’s most powerful solar telescope, the NSF Daniel K. Inouye Solar Telescope near the summit of Maui’s Haleakalā, combined with computer simulations, an international team of scientists from the NSO, NSF NCAR High Altitude Observatory (HAO), and the Max Planck Institute for Solar System Research (MPS) found the signature of Kelvin-Helmholtz instability (KHI), tiny swirling patterns like small whirlpools, on the Sun’s surface. Researchers suggest that KHI might be a key reason why the Sun’s outer atmosphere gets so hot, and why magnetic energy builds up and moves around on the Sun. Magnetic energy fuels solar flares and eruptions—the kind of solar activity that can send bursts of energy toward Earth and affect satellites, power grids, and other technology. The discovery opens a new window into the fundamental physics of the Sun and other stars while underscoring the unmatched capabilities of the Inouye Solar Telescope.
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Boulder, Colorado — August 5, 2026 — The U.S. National Science Foundation National Solar Observatory (NSF NSO) today announced a groundbreaking discovery in the field of solar physics that could fundamentally change how we understand the physical mechanisms driving solar activity and its impacts on life on Earth.
NSF Inouye Solar Telescope Captures First High-Resolution View of Kelvin-Helmholtz Instability in the Solar Photosphere
A team of international researchers from the NSO, the NSF NCAR High Altitude Observatory (HAO), and the German Max Planck Institut für Sonnensystemforschung (MPS) has discovered Kelvin-Helmholtz instability (KHI) in the form of small, swirling, whirlpool-like patterns on the surface of the sun (the photosphere). The research, published in the journal Nature, is based on data collected with the world’s largest solar telescope, the NSF Daniel K. Inouye Solar Telescope, built and operated by NSO on the island of Maui, HI. The time-lapse video and images released today reveal a solar landscape unlike any that had been seen before, uncovering small-scale and dynamic swirls everywhere at the edges of magnetic areas. This allowed for the unambiguous identification of KHI in the photosphere, providing the first experimental confirmation of a phenomenon that has long been predicted by theory but could only be revealed by the Inouye Solar Telescope’s high spatial resolution.
“We believe that the discovery of Kelvin-Helmholtz instability in the solar photosphere, backed up by analysis of numerical simulations, is a major step forward in our understanding of the dynamics and evolution of solar and stellar plasma, and will serve as a basis for future discoveries.“ — Dr. David Boboltz, Deputy Director at the National Solar Observatory.
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