Solar prominences appear as flaming arches at the limb, or edge, of the Sun’s disk.
Electrically charged gases in solar prominences come from the magnetic fields around sunspots.
Prominences last for weeks or even months, and arc tens of thousands of miles into the Sun’s chromosphere.
When a solar prominence is viewed from a different perspective so that it is against the sun instead of against space, it appears darker than the surrounding background.
This formation is called a solar filament.
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