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, September 17, 2014
Aurora
The Sun has gotten a lot more active recently. Today's Astronomy Picture of the Day shows auroral activities over the skies of Maine.
No comments:
Post a Comment