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 27, 2016
Today's Astronomy Picture of the Day shows us the northern polar region of Pluto, courtesy of the New Horizons 2015 probe. The north pole. Of Pluto. Think on that, please.