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)
Friday, October 2, 2015
Mike Drop 03
The hits keep on coming in from the edges of the Solar System. Today's Astronomy Picture of the Day brings us another stunning image from the New Horizons vehicle, this time of Pluto's biggest moon, Charon.