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, February 2, 2017
Interactions at a Vast Level
Today's Astronomy Picture of the Day shows interactions on the galactic scale. Elliptical galaxy NGC 1316 is a bit distorted after "colliding" with NGC 1317.