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, December 12, 2013
Today's Astronomy Picture of the Day shows Alnitak, Alnilam, Mintaka, the trio of stars that form the "belt" of Orion. Also visible are a number of nebula, including the very elusive (to me) Horsehead.