"A process somewhat analogous to that of the alleged formations of the universe, time and times ago, was observable. The bustling swarm had swept the sky in a scattered and uniform haze, which now thickened to a nebulous centre: this glided on to a bough and grew still denser, till it formed a solid black spot upon the light." 3. Swarm (2:14) By increasing the playback speed, we get a different impression of the dynamical processes in galaxy clusters. Here we look at the cluster from the previous track again but from 3 different fixed perspectives and also speed up the playback to 200 million years per second. The cluster dynamics take on a violent and frenzied character in stark contrast to our usual impressions of stately slow changes from astronomical imagery. |
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