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)
Sunday, July 14, 2019
Today's Astronomy Picture of the Day brings us an image of auroral activity over the skies of Norway. If might be worth the long winters just for such a sight!