Instability.

To be clear, a certain kind of interactive process called the
Kelvin-Helmholtz instability (KHI).

This instability can create
waves and swirls when two streams flow past each other --
in this case variable streams of
solar magnetic plasma.

Long hypothesized to occur on the
Sun's surface,
KHI streaks and swirls were confirmed in
just-released dramatic high-resolution
images taken recently by the
Inouye Solar
Telescope in
Hawaii,
USA. 

The
featured false-yellow image, actually taken in deep blue,
is the highest resolution image yet of
the Sun in
visible light.

It spans about the radius of
the Earth, but its finest details are city sized.

Visible are several smooth tops of
changing solar granules, while the edges of the flower-like
structures have been found to harbor multiple
KHI swirls.

Future research may investigate how the KHI helps move energy and
magnetic fields, and may even heat the surrounding
solar corona.