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)
Monday, September 29, 2014
Collecting Rocks
Today's Astronomy Picture of the Day shows some of the rocks that Mars Science Laboratory Curiosity is finding as it makes its way towards Aeolis Mons (popularly known as Mount Sharp). Spherical rocks? Crystal spiders? Mars is a place.
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