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, May 6, 2015
Today's Astronomy Picture of the Day shows the Summer Triangle framed behind a blossoming cherry tree in Gunma, Japan. "Mouseover" the image to get a constellation guide.