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, March 11, 2014
Here Comes the Sun
Saturn's second-largest moon, Rhea, enjoys the rays of the Sun. Image courtesy of the long-running Cassini, may it long be funded!