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, March 31, 2016
From Pole to Pole
Did you know that there's a place where you can observe the northern and southern polar constellations? Today's Astronomy Picture of the Day brings you there! ("Mouseover" the image in the link for a constellation guide.)
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