Scientists reveal the most detailed images of the Sun’s surface ever taken

Scientists have unveiled the most detailed images of the Sun's surface ever captured, thanks to the powerful Daniel K. Inouye Solar Telescope in Hawaii. These groundbreaking images, observed near a sunspot, offer an unprecedented view of the star's dynamic and complex nature.

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The images have a resolution of about 19 kilometres.

The research focused on an active region, revealing numerous small vortices along boundaries with strong magnetic fields. These structures, some as small as 25 kilometers across, were identified as manifestations of the Kelvin–Helmholtz instability. This phenomenon, where adjacent fluid or gas flows move at different speeds, has been observed on Earth but was previously unconfirmed on the Sun's visible surface due to insufficient telescope resolution.

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Scientists had long suspected that such processes could occur on the Sun, but until now they had not been directly observed in the photosphere, the star’s visible surface.

For the first time, the observations show magnetic region boundaries not as smooth lines but as dynamic areas filled with constantly forming vortices and streaks. Computer simulations of the solar atmosphere corroborated these findings, confirming the instability as the cause. This discovery is significant not only for its record-breaking detail but also for its potential to deepen our understanding of solar processes.

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The main obstacle had been insufficient resolution, as the structures are too small for most existing solar telescopes to detect.

Researchers believe these vortices play a crucial role in transporting matter, energy, and magnetic fields across the Sun. Studying them could unlock new knowledge about the mechanisms driving the star's magnetically active regions.

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Such vortices may play a role in transporting matter, energy and magnetic fields across the Sun.