Solar Prominences (3) ...
Quiescent prominences
are extremely stable features that remain suspended in the
corona for as long as
several solar rotations (a timescale
of a few months).
The loops in the quiescent prominence shown in the adjacent image are larger than the
Earth.
For these great loops to remain aloft for so long in the strong gravitational field of the Sun is a clear
indication that they are being held in place by magnetic forces.