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, October 25, 2015
Today's Astronomy Picture of the Day shows the conjunction between Jupiter and Venus (Mars is there as well!) going on in our morning skies. You too can carry planets in your hands!