Sun's Surface Reveals 20km Vortexes

The Daniel K. Inouye Solar Telescope, the world's largest solar telescope, has captured the sharpest image ever of the Sun's surface, revealing tiny plasma whirlpools known as Kelvin-Helmholtz instabilities. These vortexes, approximately 20 kilometers wide, were previously invisible due to their small scale.

The discovery was made possible by the telescope's 4-meter instrument, located in Hawaii, which entered its operational phase in November 2021. Scientists David Kuridze and Friedrich Wöger of the National Solar Observatory led the team that made the discovery, using observations from the telescope and numerical simulations to identify the Kelvin-Helmholtz instabilities.

The findings, published in the journal Nature, may help explain the origins of space weather and the movement of heat, mass, and magnetic energy through the Sun's atmosphere. The discovery of Kelvin-Helmholtz instabilities on the Sun's surface is a major step forward in understanding the dynamics and evolution of solar and stellar plasma.

## Why it matters The Kelvin-Helmholtz instability is a phenomenon that occurs when two fluids slide past each other at different speeds, causing the boundary between them to buckle and form vortexes. This phenomenon is not unique to the Sun and can be observed in various natural environments, such as wind-caused ripples on water and cloud formations. The discovery of Kelvin-Helmholtz instabilities on the Sun's surface may change the way scientists think about the movement of energy through the Sun's atmosphere, ultimately helping to better understand space weather and its impact on our planet.

The Daniel K. Inouye Solar Telescope's ability to capture high-resolution images of the Sun's surface has opened up new avenues for research and discovery. As scientists continue to study the Sun and its behavior, they may uncover more secrets about the dynamics of our solar system and the potential risks and benefits associated with space weather.