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Friday, June 24, 2011

Sound Video: NASA SDO new field of study Halo Dynamics (via Sun Dog Mystery Solved)

Video: NASA SDO new field of study "Halo Dynamics" (via Sun Dog Mystery Solved)

How ice crystals make sundogs.

A luminous column of white light follows SDO into the sky.

According to Cowley and Greenler, 
spinning and gyrating plate-shaped crystals are responsible for the mystery halo. 
Image Credit: L. Cowley.