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 15, 2015
The Gold at Starbow's End
Today's Astronomy Picture of the Day shows a rainbow around the Moon. I've often seen halos around the Moon, especially in the winter, but never a colored corona such as this!