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 22, 2015
Today's Astronomy Picture of the Day explores the rich beauty to be found in the constellation of Cygnus. The Milky Way's "attic" constellations are not as rich as the skies of Sagittarius or Scorpius, but still contain wonders.