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, September 25, 2013
Cluster (No Eno)
Data from multiple ground- and space-based telescopes are combined in this image of Galaxy Cluster Abell 520. New structures bridging the abysses between the concentrations of stars appear.