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, March 29, 2016
Roving
Today's Astronomy Picture of the Day is a short video taken by the Mars Science Laboratory Curiosity as it approaches Mount Sharp by way of a dune field.
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