A reminder of how powerful electromagnetic forces can be

An active filament of solar magnetism more than 124,000 miles long – far, far larger than the earth.

7 Apr 11 – An active filament of solar magnetism snaked around the sun’s southeastern limb on Tuesday. Measuring more than 124,000 miles (200,000 km) along its sinuous backbone, the vast structure – far, far larger than the earth – remained in a constant state of motion.

The earth’s diameter at the equator is 7926 miles (12,756 km).

Dancing filament strip - Photo credit: NASA's Solar Dynamics Observatory

Filaments as agitated as this one often erupt and hurl parts of themselves into space.


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