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)
Thursday, October 30, 2014
Ghost in the Veil
Today's Astronomy Picture of the Day shows a portion of The Veil Nebula, one of the spectacular (if subtle to find!) sights in the constellation of Cygnus.