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)
Tuesday, May 7, 2013
Today's Astronomy Picture of the Day is a carefully constructed composite that would be impossible to see "for real" but is beautiful, nonetheless. Oh, but for those skies!