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, February 19, 2013
Low Mover
Today's Astronomy Picture of the Day shows the innermost planet of our Solar System, Mercury, hopping low along the horizon. I've only been lucky to catch it once (too many trees in my area!).
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