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)
Monday, June 27, 2016
Today's Astronomy Picture of the Day shows anticrepuscular rays in the skies of Colorado. I see these every now and again and they are always astounding sights.