The image above shows how the neighboring Andromeda galaxy occupies about the width of six moon-diameters on our sky’s dome. But, of course, the galaxy isn’t nearly this bright. You need a dark sky to see it, and, even then, it’s a barely visible fuzzy patch of light. In order to appear as bright asContinue reading “Milky Way and Andromeda galaxies are already merging”
Random 101 