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)
Thursday, April 19, 2018
Red Bubble
Today's Astronomy Picture of the Day is a detailed look at NGC 7635, The Bubble Nebula. Wisps of red and white against a red-black background. Imagine cruising the interstellar void and chancing upon such a sight!
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