Superb inspiring view of a Dark Nebula
A little patch on the border of the inky Coalsack Nebula, or Caldwell 99, is captured in this magnificent photograph. Caldwell 99 is a dark nebula, which is defined as a dense cloud of interstellar dust that entirely covers visible light wavelengths from objects behind it. A (far smaller) protoplanetary nebula is visible in the … Read more