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, May 25, 2019
What strange planet are we seeing in today's Astronomy Picture of the Day? Why, it's Earth! A panoramic fish-eye lens is used to make a terrestrial landscape look like something out of a science fiction production.