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, April 24, 2018
Cosmic Strings
Today's Astronomy Picture of the Day is an interactive look at data collected by the Cassini Orbiter during the epic exploration of the mini planetary system that is Saturn. "Mouseover" the image in the link to "play" the rings (!).
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