for scene 22 of the video " Kepler Today - Part 1 - The Science Revolution" by Rolf Witzsche - Ice Age Ahead not Global
here for a larger image
Stellar motions in a galaxy
This creates an enigma, because the stellar motions in a galaxy reflect perfectly the known dynamics of electric-forced motion in plasma. All electric currents in plasma, especially in the spiral arms, produce rotating and twisting motions, typically with a velocity in the range of 250 KM/second that is widely evident even in the solar system, such as the speed of the solar winds.
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Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.