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 3, 2015
On Approach
The Dawn spacecraft will arrive at dwarf planet Ceres on March 6, 2015! We're already getting a better picture of the main belt asteroid than we've ever had before! Ceres is a place!
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