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)
Tuesday, July 5, 2016
Clouds and Globulars
Today's Astronomy Picture of the Day shows the rich star and nebula fields of Rho Ophiuchi. Embedded here is a much more distant object, the globular cluster Messier 4. Are the Humanoids lurking in those clouds?