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, August 11, 2013
Today's Astronomy Picture of the Day shows Messier 74 in the constellation of Pisces. This galaxy is face-on from our viewpoint, giving a wonderful look at the structure of this spiral galaxy.