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, November 28, 2013
Another Nebula in Orion
Today's Astronomy Picture of the Day shows another nebular cloud in the constellation of Orion, "south" of the more famous Messier 42, the Great Nebula in Orion.