NASA has released this new video, which was created using SDO images with additional processing applied to enhance the structures visible. The original frames are in the 171 Angstrom wavelength of extreme ultraviolet which shows plasma at around 600,000 Kelvin. The video covers 24 hours of activity on September 25, 2011. The loops represent plasma held in place by magnetic fields. They are concentrated in regions where the magnetic fields are the strongest. These active regions usually appear in visible light as sunspots.
NASA says, "While there is no scientific value to this processing, it does result in a beautiful, new way of looking at the sun." Take a look: