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)
Monday, April 11, 2016
Looking for Gamma
High above Earth, and slightly above the cargo bay of space shuttle Atlantis, the Compton Gamma-Ray Observatory starts its mission.