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)
Saturday, July 12, 2014
If I saw today's Astronomy Picture of the Day in a Star Trek movie, I'd complain about how something like that couldn't exist. But it does. SN1006, a supernova remnant. What mad universe!