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)
Friday, December 19, 2014
Layers
Today's Astronomy Picture of the Day takes us into the 1970's, NGC 1977, NGC 1975, NGC 1973, deep in the heart of Orion.
While we're reflecting on the 1970's, how about reflecting on the NGC itself? Or the earlier catalog, the Messier?
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