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, February 9, 2013
Train in Vain
Today's Astronomy Picture of the Day shows The Great Meteor Procession of 1913. One large rock that broke into several smaller? Take a look at Shoemaker-Levy 9 as a possible example.