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)
Thursday, January 3, 2013
Blast from the Past
In this installment from NASA's Image of the Day Gallery, data from the Mariner 2 probe, making its closest approach to Venus, is released to the public. Look at the "media" it is released on. We've come a long way!