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, April 28, 2015
Northern Spiral, Red Tinge
Today's Astronomy Picture of the Day combines data from the Hubble Space Telescope and the Subaru (ground-based) Telescope to show great detail on NGC 2841, a spiral galaxy in the constellation of Ursa Major.