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, February 18, 2014
The Tracks of My Gears
Today's Astronomy Picture of the Day shows the tracks left by MSL Curiosity as it crossed through Dingo Gap on the way to (so-called) Mount Sharp.