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Solar Features - Prominences and Filaments - Filaments

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 04:30 AM | Dataset Last Updated: August 10, 2014 at 12:00 AM
Filaments are formed in magnetic loops that hold relatively cool, dense gas suspended above the surface of the Sun (David Hathaway/NASA)

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