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)
Friday, December 20, 2013
Fishing the Methane Lakes
Today's Astronomy Picture of the Day shows the methane and ethane lakes of Titan, as imaged by the long-running Cassini orbiter.
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