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, December 23, 2014
Today's Astronomy Picture of the Day shows the jagged surface of Comet Churyumov-Gerasimenko as imaged by the ESA's Rosetta vehicle. Is that Bruce Willis at the base of the cliffs?