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)
Tuesday, March 10, 2015
Mirror Universe
Above, the auroral curtains. Below, the stars. Today's Astronomy Picture of the Day shows auroral activity in the skies of Iceland. Reflected in the lake are the stars. "Mouseover" the image to get a constellation guide.
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