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, June 17, 2014
Today's Astronomy Picture of the Day is actually a short film of V838 Mon (in Monoceros). What caused the flash of light that we are still seeing echoes of?