SUMMARY
Astrophysicists have achieved the highest-resolution images of the Sun's surface to date, utilizing the Daniel K. Inouye Solar Telescope. These images reveal Kelvin-Helmholtz instabilities (KHIs) in the Sun's photosphere, a phenomenon previously observed only in the corona. KHIs, caused by speed differences within a fluid, are now thought to be the "tiny engines" driving solar activity and generating heat. The discovery was a serendipitous outcome of testing a new data-gathering approach with the telescope's FastCam high-speed camera.
TAKEAWAYS
Highest-resolution images of the Sun's surface were captured by the Daniel K. Inouye Solar Telescope.
The images reveal Kelvin-Helmholtz instabilities (KHIs) in the Sun's photosphere for the first time.
KHIs are believed to be key "tiny engines" driving solar activity and heat generation.
The discovery was made using a high-speed camera, FastCam, capturing 740 frames per second.