NASA | SDO Catches Surf Waves on the Sun

The video explores the Kelvin-Helmholtz (KH) instability, a phenomenon where two fluids flow past each other at different speeds or densities, forming wave patterns. This instability is observed in clouds, water waves, and notably in the sun's atmosphere. The Solar Dynamics Observatory has recorded KH waves during coronal mass ejections, providing insights into how these waves transfer energy and heat the sun's corona. Despite initial skepticism about the sun's magnetic field preventing KH waves, models confirm their formation. Understanding these waves aids in developing better solar models and predicting solar activity.

What evidence did scientists gather to support the existence of Kelvin-Helmholtz instabilities on the sun?

In what ways can understanding solar waves contribute to predicting solar activity?