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, May 25, 2015
Arms of the Galaxy
Today's Astronomy Picture of the Day shows the Milky Way supported by the arms of a earthbound tree. "Mouseover" the image for a constellation guide.