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)
Tuesday, March 20, 2018
New York Does It Better
Today's Astronomy Picture of the Day shows Chicagohenge, the time when the city (the Earth) aligns so that it has the Sun "rise" (or "set") along the streets. Happy Equinox!