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)
Monday, May 28, 2018
Rainbow Sisters
Today's Astronomy Picture of the Day brings new color to a familiar celestial object: the WISE spacecraft images the Pleiades (the "Seven Sisters") and teases out the interplay of dust and gas around those stars. "Mouseover" the image in the link in order to see an "ordinary" view of the open cluster.
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