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)
Sunday, May 6, 2018
Today's Astronomy Picture of the Day shows the sky above Bryce Canyon in Utah. The arch of the Milky Way leaps above the deeps of the canyon.