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)
Saturday, July 13, 2019
Today's Astronomy Picture of the Day is an anaglyph (three-dimensional image) of the ascent stage of the Eagle, the Lunar Module that first brought humans to the surface of another sphere. Fifty. Years. Ago.