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)
Thursday, October 5, 2017
Today's Astronomy Picture of the Day is a lovely closeup of Pluto, as imaged by the New Horizons 2015 probe. Is it just me, or does it look like a plaster model?