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 2, 2015
I was told once by a ship's captain that the only way I'd ever see a green flash was to look at the setting sun through the bottom of a Heineken bottle. Today's Astronomy Picture of the Day is a short video that shows otherwise.