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)
Wednesday, April 13, 2016
ExoPlanet
Apparently an exoplanet was detected in 1917. What other treasures are hidden in pictures?
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