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)
Friday, February 23, 2018
Today's Astronomy Picture of the Day is a view from Lunar Module Challenger and features Command Module America as the Apollo 17 landing was underway. Now, where are my 3D glasses?