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, January 6, 2018
What's that off the wingtip of a passenger jet over Europe? UFO's? No, it is today's Astronomy Picture of the Day. Jupiter and Mars are in conjunction with extra-solar Zubenelegubi, a star in the constellation of Libra.