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, August 14, 2013
The Razor's Edge
Today's Astronomy Picture of the Day shows the setting Moon, a Moon so thin in it's fingernail-clipping crescent that it can barely be seen as it sinks into the sea.