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, May 3, 2013
Another Horsehead
Today's Astronomy Picture of the Day is a "stacked" image of both ground-based and space-based telescopic images of the Horsehead Nebula (Barnard 33) embedded within the greater overall Orion Nebula (Messier 42). This object is a tough one to spot under light-drenched New Jersey skies!
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