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)
Sunday, January 8, 2017
Squaring the Circle
Today's Astronomy Picture of the Day shows IC 4406, a planetary nebula in the constellation of Lupus. Square? Sphere? Cigar? What shape do you see?
No comments:
Post a Comment