Eyeing that title and given the more more concrete article introduction sentence

> Scientists 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.

Perhaps it make sense to unclickbait the title by replacing "a hidden solar process" with "Kelvin-Helmholtz instability"