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, July 12, 2014
At the Headwaters
Europa, one of the four Galilean moons of Jupiter has been seen with what appears to be plumes of water vapor. This image shows the potential location of the plumes. Landing site for a probe carrying a robotic submarine?