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)
Friday, April 28, 2017
Spooky Action Close Up
Today's Astronomy Picture of the Day uses multiple telescopes to study the Antennae. After you're done staring at the image, think about what it might be like to be inside an "interacting" region.