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)
Monday, October 28, 2013
The Great Comet...
...of 1680 is the subject of today's Astronomy Picture of the Day. Will Comet ISON develop a spectacular tail and dominate our (light polluted) skies?