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, August 19, 2014
Decisions...Decisions...
Today's Astronomy Picture of the Day illustrates the ESA's quandry: where to land the Philae probe (currently being carried on Rosetta) on Comet 67P/Churyumov-Gerasimenko?
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