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, November 20, 2014
Operation Icebridge is five years old! An ongoing effort by NASA to track how we're melting the poles, this image shows how the western ice sheets at the south pole are reaching the point of collapse.