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, December 10, 2014
On the Vanceian Plane
Today's Astronomy Picture of the Day shows Messier 71, in the obscure constellation of Sagitta. "Mouseover" to have the image "corrected" for the amount of dust that lies between us and it.