From NASA's Scientific Visualization Studio. This video takes images
from the Solar Dynamics Observatory and applies additional processing to
enhance the structures that are visible. The result is a beautiful, new
way of looking at the sun. The original frames are in the 171 Angstrom
wavelength of extreme ultraviolet. This wavelength shows plasma in the
solar atmosphere, called the corona, that is around 600,000 Kelvin. The
loops represent plasma held in place by magnetic fields. They are
concentrated in "active regions" where the magnetic fields are the
strongest. These active regions usually appear in visible light as
sunspots. The events in this video represent 24 hours of activity on
September 25, 2011.
