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, February 23, 2014
Crossing the Plane
Today's Astronomy Picture of the Day shows us what the long-working Cassini orbiter saw when it crossed the plane of Saturn's rings in 2005.