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)
Monday, September 2, 2019
From the Mountains to the Moon
Today's Astronomy of the Day shows the Moon rising over the Alps (did you know there are also Alps on the Moon?). Off to the side of the Moon, a small star. Wait...that's no star...that's a giant planet!