These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Wednesday, July 6, 2016
Cosmic Interaction at a Distance
Today's Astronomy Picture of the Day shows Arp 286 in the constellation of Virgo. Part of Halton Arp's Catalog of Peculiar Galaxies, we see a good example of how galaxies interact with each other on a vast (to mere humans) scale.
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