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, March 1, 2016
Today's Astronomy Picture of the Day shows NGC 3310 in the constellation of Ursa Major. "Recently" NGC 3310 "collided" with another galaxy and this caused it to become a starburst galaxy, undergoing a nearly galaxy-wide burst of star formation.