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, May 1, 2013
The Omega is an Alpha
Today's Astronomy Picture of the Day shows Omega Centauri, NGC 5139, the brightest of globular clusters in the sky.
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