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, April 23, 2014
Today's Astronomy Picture of the Day shows Arp 81 in the constellation of Draco. Two galaxies collided ("interacted") and have become distorted.