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, September 18, 2014
Today's Pluto Picture of the Day shows images taken by the Long Range Reconnaissance Imager (LORRI) on the New Horizons vehicle. The camera captured Hydra, Pluto's outermost (known) moon.