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Cascading loops on the surface of the sun highlight an active region that had…

Cascading loops on the surface of the sun highlight an active region that had…

Cascading loops on the surface of the sun highlight an active region that had just rotated into view of our solar-observing spacecraft. We have observed this phenomenon numerous times, but this one was one of the longest and clearest sequences we have seen in years. 

The bright loops are actually charged particles spinning along the magnetic field lines! The action was captured in a combination of two wavelengths of extreme ultraviolet light over a period of about 20 hours. 

Take a closer look: https://sdo.gsfc.nasa.gov/gallery/potw/item/798

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