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, September 8, 2015
Green Flash
I've been told that the only way to see a green flash is to be looking at the sunset through the bottom of a Heineken bottle, but today's Astronomy Picture of the Day seems to contradict that assertion.
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