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, February 4, 2015
Today's Astronomy Picture of the Day shows an evening sky inhabited by brightening stars, auroral activity and...sprites. Something else for my astronomical bucket list!