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)
Wednesday, June 26, 2019
Smoke on the Water
Today's Astronomy Picture of the Day shows noctilucent clouds above and below, as the wispy strands in the sky are reflected in the waters of a lake in the Netherlands.