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)
Friday, January 10, 2014
Today's Astronomy Picture of the Day shows us NGC 7293, The Helix Nebula, in the constellation of Aquarius. It's amazing what that song overlooked.