“Mirror of the Milky Way” –Puzzling Galaxy Found at Dawn of the Universe

  It’s difficult to fully appreciate how much our picture of the universe has changed in the span of a single human lifetime. A century ago, the universe was viewed as static and eternal, consisting of one single “island” galaxy, our Milky Way, surrounded by vast, infinite, dark, and empty space. “With increasing distance,” said … Continue reading “Mirror of the Milky Way” –Puzzling Galaxy Found at Dawn of the Universe