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)
Thursday, August 20, 2015
Catalog Entry
Today's Astronomy Picture of the Day shows one of astronomer Charles Messier's entries in his list of non-cometary objects. Once known as the "ferret of comets", Messier's comets have all been forgotten but his list of non-comets brings joy to amateurs around the world, especially during the time of the so-called "Messier Marathon".
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