for scene 17 of the video " Black Holes, Part 12, Black Holes in Science" by Rolf Witzsche
here for a larger image
But maybe a few of the pioneers
But maybe a few of the pioneers have already come to the conclusion that they want to grow up, and are ponderous of how this might be accomplished.
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Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.