NASA Telescope Captures Kelvin-Helmholtz Vortices on the Sun

The Inouye Solar Telescope in Hawaii has produced the most detailed photographs of the Sun’s surface to date, showing a pattern of vortices caused by Kelvin-Helmholtz instability, a phenomenon that occurs when two fluids slide past each other and generate spiraling motions. The National Solar Observatory reported that the observed vortices are spaced about 50 to 65 kilometres apart.

Scientists explained that the twisting of magnetic fields by hot plasma motion creates magnetic energy that can be released as solar flares or coronal mass ejections, events that affect space weather and can disrupt power grids, satellites, and astronaut safety. > "These twisting motions are creating magnetic energy, which can build up to produce those large-scale explosions," said NSO astronomer Dr. David Kuridze. > "The energy gets released as a flare or what's known as a coronal mass ejection," added Dr. Friedrich Woeger.

Researchers emphasized that understanding these small-scale processes is essential for improving space-weather forecasting. > "To figure out and eventually predict space weather, we want to understand the physics of the Sun, all the way down to the smallest scales," said Dr. David Boboltz of the NSO. The study was published in the journal Nature.