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)
Saturday, April 13, 2013
Flareup: Solar Explosion
Today's Astronomy Picture of the Day shows a strong flare and coronal mass ejection from our Quiet Sun. Auroras tonight!!!
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