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, April 21, 2013
And Straight on to Morning
Today's Astronomy Picture of the Day shows the Big Dipper and the Little Dipper. "Mouseover" the image to see how you can use the one to find the other.