for scene 27 of the video " Kepler Today - Part 1 - The Science Revolution" by Rolf Witzsche - Ice Age Ahead not Global
here for a larger image
Our sun, contains 99.9% of the mass in the solar system
Our tiny solar system operates as well as it does, because its center of gravity, our sun, contains 99.9% of all the mass in the solar system. An equivalent ratio is impossible to imagine on the galactic scale, no matter how far the credibility is stretched. In order to force a solution to this problem, the existence of dark matter is imagined, which can neither be seen, nor be experimentally detected, which is deemed to be so massive that orbiting stars in a galaxy can be recognized as a possibility.
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Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.